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make_negative.html ADDED
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+ <!DOCTYPE html>
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+ <html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"><head>
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+
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+ <meta charset="utf-8">
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+ <meta name="generator" content="quarto-1.3.433">
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+
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+ <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
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+
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+
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+ <title>Codewars Challenge 2024 Menggunakan R dan RStudio - 5&nbsp; Return Negative</title>
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+ <style>
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+ code{white-space: pre-wrap;}
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+ span.smallcaps{font-variant: small-caps;}
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+ div.sourceCode { margin: 1em 0; }
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+ @media screen {
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+ pre.numberSource { margin-left: 3em; padding-left: 4px; }
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+ <button type="button" class="quarto-btn-toggle btn" data-bs-toggle="collapse" data-bs-target="#quarto-sidebar,#quarto-sidebar-glass" aria-controls="quarto-sidebar" aria-expanded="false" aria-label="Toggle sidebar navigation" onclick="if (window.quartoToggleHeadroom) { window.quartoToggleHeadroom(); }">
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+ <i class="bi bi-layout-text-sidebar-reverse"></i>
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+ </button>
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+ <nav class="quarto-page-breadcrumbs" aria-label="breadcrumb"><ol class="breadcrumb"><li class="breadcrumb-item"><a href="./make_negative.html"><span class="chapter-number">5</span>&nbsp; <span class="chapter-title">Return Negative</span></a></li></ol></nav>
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+ <a class="flex-grow-1" role="button" data-bs-toggle="collapse" data-bs-target="#quarto-sidebar,#quarto-sidebar-glass" aria-controls="quarto-sidebar" aria-expanded="false" aria-label="Toggle sidebar navigation" onclick="if (window.quartoToggleHeadroom) { window.quartoToggleHeadroom(); }">
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+ </a>
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+ <button type="button" class="btn quarto-search-button" aria-label="" onclick="window.quartoOpenSearch();">
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+ <i class="bi bi-search"></i>
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+ </header>
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+ <!-- content -->
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+ <div id="quarto-content" class="quarto-container page-columns page-rows-contents page-layout-article">
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+ <!-- sidebar -->
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+ <nav id="quarto-sidebar" class="sidebar collapse collapse-horizontal sidebar-navigation floating overflow-auto">
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+ <div class="pt-lg-2 mt-2 text-left sidebar-header">
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+ <div class="sidebar-title mb-0 py-0">
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+ <a href="./">Codewars Challenge 2024 Menggunakan R dan RStudio</a>
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+ </div>
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+ </div>
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+ <div class="mt-2 flex-shrink-0 align-items-center">
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+ <div class="sidebar-search">
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+ <div id="quarto-search" class="" title="Search"></div>
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+ </div>
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+ </div>
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+ <div class="sidebar-menu-container">
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+ <ul class="list-unstyled mt-1">
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+ <li class="sidebar-item">
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+ <div class="sidebar-item-container">
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+ <a href="./index.html" class="sidebar-item-text sidebar-link">
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+ <span class="menu-text">Pengantar</span></a>
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+ </div>
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+ </li>
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+ <li class="sidebar-item">
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+ <div class="sidebar-item-container">
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+ <a href="./evenodd.html" class="sidebar-item-text sidebar-link">
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+ <span class="menu-text"><span class="chapter-number">1</span>&nbsp; <span class="chapter-title">Even or Odd</span></span></a>
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+ </div>
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+ </li>
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+ <li class="sidebar-item">
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+ <div class="sidebar-item-container">
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+ <a href="./multiply.html" class="sidebar-item-text sidebar-link">
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+ <span class="menu-text"><span class="chapter-number">2</span>&nbsp; <span class="chapter-title">Multiply</span></span></a>
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+ </div>
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+ </li>
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+ <li class="sidebar-item">
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+ <div class="sidebar-item-container">
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+ <a href="./countsheep.html" class="sidebar-item-text sidebar-link">
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+ <span class="menu-text"><span class="chapter-number">3</span>&nbsp; <span class="chapter-title">If you can’t sleep, just count sheep!!</span></span></a>
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+ </div>
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+ </li>
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+ <li class="sidebar-item">
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+ <div class="sidebar-item-container">
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+ <a href="./reducegrow.html" class="sidebar-item-text sidebar-link">
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+ <span class="menu-text"><span class="chapter-number">4</span>&nbsp; <span class="chapter-title">Beginner - Reduce but Grow</span></span></a>
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+ </div>
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+ </li>
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+ <li class="sidebar-item">
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+ <div class="sidebar-item-container">
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+ <a href="./make_negative.html" class="sidebar-item-text sidebar-link active">
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+ <span class="menu-text"><span class="chapter-number">5</span>&nbsp; <span class="chapter-title">Return Negative</span></span></a>
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+ </div>
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+ </li>
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+ <li class="sidebar-item">
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+ <div class="sidebar-item-container">
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+ <a href="./positive_sum.html" class="sidebar-item-text sidebar-link">
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+ <span class="menu-text"><span class="chapter-number">6</span>&nbsp; <span class="chapter-title">Sum of positive</span></span></a>
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+ </div>
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+ </li>
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+ <li class="sidebar-item">
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+ <div class="sidebar-item-container">
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+ <a href="./references.html" class="sidebar-item-text sidebar-link">
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+ <span class="menu-text">References</span></a>
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+ </div>
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+ </li>
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+ </ul>
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+ </div>
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+ </nav>
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+ <div id="quarto-sidebar-glass" data-bs-toggle="collapse" data-bs-target="#quarto-sidebar,#quarto-sidebar-glass"></div>
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+ <!-- margin-sidebar -->
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+ <div id="quarto-margin-sidebar" class="sidebar margin-sidebar">
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+ <nav id="TOC" role="doc-toc" class="toc-active">
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+ <h2 id="toc-title">Table of contents</h2>
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+
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+ <ul>
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+ <li><a href="#instruction" id="toc-instruction" class="nav-link active" data-scroll-target="#instruction"><span class="header-section-number">5.1</span> Instruction</a></li>
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+ <li><a href="#youtube-video" id="toc-youtube-video" class="nav-link" data-scroll-target="#youtube-video"><span class="header-section-number">5.2</span> YouTube Video</a></li>
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+ <li><a href="#solution-code" id="toc-solution-code" class="nav-link" data-scroll-target="#solution-code"><span class="header-section-number">5.3</span> Solution Code</a></li>
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+ <li><a href="#test" id="toc-test" class="nav-link" data-scroll-target="#test"><span class="header-section-number">5.4</span> Test</a></li>
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+ <li><a href="#supported-by" id="toc-supported-by" class="nav-link" data-scroll-target="#supported-by"><span class="header-section-number">5.5</span> Supported by</a></li>
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+ </ul>
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+ </nav>
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+ </div>
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+ <!-- main -->
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+ <main class="content" id="quarto-document-content">
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+
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+ <header id="title-block-header" class="quarto-title-block default">
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+ <div class="quarto-title">
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+ <h1 class="title"><span class="chapter-number">5</span>&nbsp; <span class="chapter-title">Return Negative</span></h1>
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+ </div>
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+
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+
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+
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+ <div class="quarto-title-meta">
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+
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+
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+
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+
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+ </div>
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+
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+
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+ </header>
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+
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+ <p>Tantangan #5/366 - 18 Feb 2024</p>
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+ <p><a href="https://www.codewars.com/kata/55685cd7ad70877c23000102/train/r" class="uri">https://www.codewars.com/kata/55685cd7ad70877c23000102/train/r</a></p>
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+ <p><span class="badge rounded-pill quarto-badge " style="background-color: grey;">8kyu</span> Return Negative</p>
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+ <section id="instruction" class="level2" data-number="5.1">
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+ <h2 data-number="5.1" class="anchored" data-anchor-id="instruction"><span class="header-section-number">5.1</span> Instruction</h2>
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+ <p>In this simple assignment you are given a number and have to make it negative. But maybe the number is already negative?</p>
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+ <p>Examples</p>
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+ <pre><code>make_negative(1); # return -1
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+ make_negative(-5); # return -5
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+ make_negative(0); # return 0</code></pre>
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+ <p><strong>Notes</strong><br>
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+ The number can be negative already, in which case no change is required. Zero (0) is not checked for any specific sign. Negative zeros make no mathematical sense.</p>
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+ </section>
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+ <section id="youtube-video" class="level2" data-number="5.2">
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+ <h2 data-number="5.2" class="anchored" data-anchor-id="youtube-video"><span class="header-section-number">5.2</span> YouTube Video</h2>
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+ <div class="quarto-video ratio ratio-16x9"><iframe data-external="1" src="https://www.youtube.com/embed/L8aczEhqymk?si=DSx84acpNvbkucrK" title="" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen=""></iframe></div>
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+ </section>
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+ <section id="solution-code" class="level2" data-number="5.3">
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+ <h2 data-number="5.3" class="anchored" data-anchor-id="solution-code"><span class="header-section-number">5.3</span> Solution Code</h2>
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+ <p>Solusi bar-bar</p>
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+ <div class="cell">
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+ <div class="sourceCode cell-code" id="cb2"><pre class="sourceCode r code-with-copy"><code class="sourceCode r"><span id="cb2-1"><a href="#cb2-1" aria-hidden="true" tabindex="-1"></a>make_negative <span class="ot">&lt;-</span> <span class="cf">function</span>(num){</span>
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+ <span id="cb2-2"><a href="#cb2-2" aria-hidden="true" tabindex="-1"></a> <span class="fu">ifelse</span>(num <span class="sc">&lt;=</span> <span class="dv">0</span>, num, <span class="sc">-</span><span class="dv">1</span><span class="sc">*</span>num)</span>
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+ <span id="cb2-3"><a href="#cb2-3" aria-hidden="true" tabindex="-1"></a>}</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
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+ </div>
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+ <p>Solusi simple</p>
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+ <div class="cell">
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+ <div class="sourceCode cell-code" id="cb3"><pre class="sourceCode r code-with-copy"><code class="sourceCode r"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a>make_negative <span class="ot">&lt;-</span> <span class="cf">function</span>(num)<span class="sc">-</span><span class="fu">abs</span>(num)</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
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+ </div>
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+ </section>
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+ <section id="test" class="level2" data-number="5.4">
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+ <h2 data-number="5.4" class="anchored" data-anchor-id="test"><span class="header-section-number">5.4</span> Test</h2>
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+ <div class="cell">
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+ <div class="sourceCode cell-code" id="cb4"><pre class="sourceCode r code-with-copy"><code class="sourceCode r"><span id="cb4-1"><a href="#cb4-1" aria-hidden="true" tabindex="-1"></a><span class="fu">library</span>(testthat)</span>
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+ <span id="cb4-2"><a href="#cb4-2" aria-hidden="true" tabindex="-1"></a></span>
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+ <span id="cb4-3"><a href="#cb4-3" aria-hidden="true" tabindex="-1"></a><span class="fu">test_that</span>(<span class="st">'Basic tests'</span>, {</span>
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+ <span id="cb4-4"><a href="#cb4-4" aria-hidden="true" tabindex="-1"></a> <span class="fu">expect_equal</span>(<span class="fu">make_negative</span>(<span class="dv">42</span>), <span class="sc">-</span><span class="dv">42</span>)</span>
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+ <span id="cb4-5"><a href="#cb4-5" aria-hidden="true" tabindex="-1"></a> <span class="fu">expect_equal</span>(<span class="fu">make_negative</span>(<span class="sc">-</span><span class="dv">9</span>), <span class="sc">-</span><span class="dv">9</span>)</span>
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+ <span id="cb4-6"><a href="#cb4-6" aria-hidden="true" tabindex="-1"></a> <span class="fu">expect_equal</span>(<span class="fu">make_negative</span>(<span class="dv">0</span>), <span class="dv">0</span>)</span>
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+ <span id="cb4-7"><a href="#cb4-7" aria-hidden="true" tabindex="-1"></a> <span class="fu">expect_equal</span>(<span class="fu">make_negative</span>(<span class="dv">1</span>), <span class="sc">-</span><span class="dv">1</span>)</span>
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+ <span id="cb4-8"><a href="#cb4-8" aria-hidden="true" tabindex="-1"></a> <span class="fu">expect_equal</span>(<span class="fu">make_negative</span>(<span class="sc">-</span><span class="dv">1</span>), <span class="sc">-</span><span class="dv">1</span>)</span>
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+ <span id="cb4-9"><a href="#cb4-9" aria-hidden="true" tabindex="-1"></a>})</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
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+ <div class="cell-output cell-output-stdout">
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+ <pre><code>Test passed 🎊</code></pre>
267
+ </div>
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+ </div>
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+ </section>
270
+ <section id="supported-by" class="level2" data-number="5.5">
271
+ <h2 data-number="5.5" class="anchored" data-anchor-id="supported-by"><span class="header-section-number">5.5</span> Supported by</h2>
272
+ <div class="quarto-figure quarto-figure-center">
273
+ <figure class="figure">
274
+ <p><a href="https://www.starcore.co"><img src="new_starcore_logo.png" class="img-fluid figure-img"></a></p>
275
+ <figcaption class="figure-caption">StarCore Analytics</figcaption>
276
+ </figure>
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+ </div>
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+
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+
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+ </section>
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+
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+ </main> <!-- /main -->
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+ <script id="quarto-html-after-body" type="application/javascript">
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+ window.document.addEventListener("DOMContentLoaded", function (event) {
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+ const toggleBodyColorMode = (bsSheetEl) => {
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+ const mode = bsSheetEl.getAttribute("data-mode");
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+ const bodyEl = window.document.querySelector("body");
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+ if (mode === "dark") {
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+ bodyEl.classList.add("quarto-dark");
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+ bodyEl.classList.remove("quarto-light");
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+ } else {
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+ bodyEl.classList.add("quarto-light");
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+ bodyEl.classList.remove("quarto-dark");
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+ const toggleBodyColorPrimary = () => {
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+ const bsSheetEl = window.document.querySelector("link#quarto-bootstrap");
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+ if (bsSheetEl) {
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+ anchorJS.options = {
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+ placement: 'right',
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+ return true;
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+ }
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+ const clipboard = new window.ClipboardJS('.code-copy-button', {
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+ text: function(trigger) {
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+ clipboard.on('success', function(e) {
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+ // button target
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+ const button = e.trigger;
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+ // don't keep focus
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+ button.blur();
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+ // flash "checked"
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+ button.classList.add('code-copy-button-checked');
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+ var currentTitle = button.getAttribute("title");
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+ button.setAttribute("title", "Copied!");
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+ let tooltip;
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+ if (window.bootstrap) {
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+ button.setAttribute("data-bs-toggle", "tooltip");
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+ button.setAttribute("data-bs-placement", "left");
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+ button.setAttribute("data-bs-title", "Copied!");
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+ tooltip = new bootstrap.Tooltip(button,
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+ for (const annoteDlNode of annoteDls) {
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+ var biblioDiv = window.document.getElementById('ref-' + cite);
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+ if (biblioDiv) {
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+ }
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+ });
510
+ return popup.innerHTML;
511
+ });
512
+ }
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+ }
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+ });
515
+ </script>
516
+ <nav class="page-navigation">
517
+ <div class="nav-page nav-page-previous">
518
+ <a href="./reducegrow.html" class="pagination-link">
519
+ <i class="bi bi-arrow-left-short"></i> <span class="nav-page-text"><span class="chapter-number">4</span>&nbsp; <span class="chapter-title">Beginner - Reduce but Grow</span></span>
520
+ </a>
521
+ </div>
522
+ <div class="nav-page nav-page-next">
523
+ <a href="./positive_sum.html" class="pagination-link">
524
+ <span class="nav-page-text"><span class="chapter-number">6</span>&nbsp; <span class="chapter-title">Sum of positive</span></span> <i class="bi bi-arrow-right-short"></i>
525
+ </a>
526
+ </div>
527
+ </nav>
528
+ </div> <!-- /content -->
529
+
530
+
531
+
532
+ </body></html>
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11
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+ div.sourceCode { margin: 1em 0; }
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+ pre.sourceCode { margin: 0; }
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+ @media screen {
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+ <script src="site_libs/quarto-search/autocomplete.umd.js"></script>
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+ <script src="site_libs/quarto-search/fuse.min.js"></script>
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+ <script src="site_libs/quarto-search/quarto-search.js"></script>
66
+ <meta name="quarto:offset" content="./">
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+ <link href="./references.html" rel="next">
68
+ <link href="./make_negative.html" rel="prev">
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+ <script src="site_libs/quarto-html/quarto.js"></script>
70
+ <script src="site_libs/quarto-html/popper.min.js"></script>
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75
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76
+ <link href="site_libs/bootstrap/bootstrap-icons.css" rel="stylesheet">
77
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101
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102
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106
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107
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108
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109
+ <button type="button" class="quarto-btn-toggle btn" data-bs-toggle="collapse" data-bs-target="#quarto-sidebar,#quarto-sidebar-glass" aria-controls="quarto-sidebar" aria-expanded="false" aria-label="Toggle sidebar navigation" onclick="if (window.quartoToggleHeadroom) { window.quartoToggleHeadroom(); }">
110
+ <i class="bi bi-layout-text-sidebar-reverse"></i>
111
+ </button>
112
+ <nav class="quarto-page-breadcrumbs" aria-label="breadcrumb"><ol class="breadcrumb"><li class="breadcrumb-item"><a href="./positive_sum.html"><span class="chapter-number">6</span>&nbsp; <span class="chapter-title">Sum of positive</span></a></li></ol></nav>
113
+ <a class="flex-grow-1" role="button" data-bs-toggle="collapse" data-bs-target="#quarto-sidebar,#quarto-sidebar-glass" aria-controls="quarto-sidebar" aria-expanded="false" aria-label="Toggle sidebar navigation" onclick="if (window.quartoToggleHeadroom) { window.quartoToggleHeadroom(); }">
114
+ </a>
115
+ <button type="button" class="btn quarto-search-button" aria-label="" onclick="window.quartoOpenSearch();">
116
+ <i class="bi bi-search"></i>
117
+ </button>
118
+ </div>
119
+ </nav>
120
+ </header>
121
+ <!-- content -->
122
+ <div id="quarto-content" class="quarto-container page-columns page-rows-contents page-layout-article">
123
+ <!-- sidebar -->
124
+ <nav id="quarto-sidebar" class="sidebar collapse collapse-horizontal sidebar-navigation floating overflow-auto">
125
+ <div class="pt-lg-2 mt-2 text-left sidebar-header">
126
+ <div class="sidebar-title mb-0 py-0">
127
+ <a href="./">Codewars Challenge 2024 Menggunakan R dan RStudio</a>
128
+ </div>
129
+ </div>
130
+ <div class="mt-2 flex-shrink-0 align-items-center">
131
+ <div class="sidebar-search">
132
+ <div id="quarto-search" class="" title="Search"></div>
133
+ </div>
134
+ </div>
135
+ <div class="sidebar-menu-container">
136
+ <ul class="list-unstyled mt-1">
137
+ <li class="sidebar-item">
138
+ <div class="sidebar-item-container">
139
+ <a href="./index.html" class="sidebar-item-text sidebar-link">
140
+ <span class="menu-text">Pengantar</span></a>
141
+ </div>
142
+ </li>
143
+ <li class="sidebar-item">
144
+ <div class="sidebar-item-container">
145
+ <a href="./evenodd.html" class="sidebar-item-text sidebar-link">
146
+ <span class="menu-text"><span class="chapter-number">1</span>&nbsp; <span class="chapter-title">Even or Odd</span></span></a>
147
+ </div>
148
+ </li>
149
+ <li class="sidebar-item">
150
+ <div class="sidebar-item-container">
151
+ <a href="./multiply.html" class="sidebar-item-text sidebar-link">
152
+ <span class="menu-text"><span class="chapter-number">2</span>&nbsp; <span class="chapter-title">Multiply</span></span></a>
153
+ </div>
154
+ </li>
155
+ <li class="sidebar-item">
156
+ <div class="sidebar-item-container">
157
+ <a href="./countsheep.html" class="sidebar-item-text sidebar-link">
158
+ <span class="menu-text"><span class="chapter-number">3</span>&nbsp; <span class="chapter-title">If you can’t sleep, just count sheep!!</span></span></a>
159
+ </div>
160
+ </li>
161
+ <li class="sidebar-item">
162
+ <div class="sidebar-item-container">
163
+ <a href="./reducegrow.html" class="sidebar-item-text sidebar-link">
164
+ <span class="menu-text"><span class="chapter-number">4</span>&nbsp; <span class="chapter-title">Beginner - Reduce but Grow</span></span></a>
165
+ </div>
166
+ </li>
167
+ <li class="sidebar-item">
168
+ <div class="sidebar-item-container">
169
+ <a href="./make_negative.html" class="sidebar-item-text sidebar-link">
170
+ <span class="menu-text"><span class="chapter-number">5</span>&nbsp; <span class="chapter-title">Return Negative</span></span></a>
171
+ </div>
172
+ </li>
173
+ <li class="sidebar-item">
174
+ <div class="sidebar-item-container">
175
+ <a href="./positive_sum.html" class="sidebar-item-text sidebar-link active">
176
+ <span class="menu-text"><span class="chapter-number">6</span>&nbsp; <span class="chapter-title">Sum of positive</span></span></a>
177
+ </div>
178
+ </li>
179
+ <li class="sidebar-item">
180
+ <div class="sidebar-item-container">
181
+ <a href="./references.html" class="sidebar-item-text sidebar-link">
182
+ <span class="menu-text">References</span></a>
183
+ </div>
184
+ </li>
185
+ </ul>
186
+ </div>
187
+ </nav>
188
+ <div id="quarto-sidebar-glass" data-bs-toggle="collapse" data-bs-target="#quarto-sidebar,#quarto-sidebar-glass"></div>
189
+ <!-- margin-sidebar -->
190
+ <div id="quarto-margin-sidebar" class="sidebar margin-sidebar">
191
+ <nav id="TOC" role="doc-toc" class="toc-active">
192
+ <h2 id="toc-title">Table of contents</h2>
193
+
194
+ <ul>
195
+ <li><a href="#instruction" id="toc-instruction" class="nav-link active" data-scroll-target="#instruction"><span class="header-section-number">6.1</span> Instruction</a></li>
196
+ <li><a href="#youtube-video" id="toc-youtube-video" class="nav-link" data-scroll-target="#youtube-video"><span class="header-section-number">6.2</span> YouTube Video</a></li>
197
+ <li><a href="#solution-code" id="toc-solution-code" class="nav-link" data-scroll-target="#solution-code"><span class="header-section-number">6.3</span> Solution Code</a></li>
198
+ <li><a href="#test" id="toc-test" class="nav-link" data-scroll-target="#test"><span class="header-section-number">6.4</span> Test</a></li>
199
+ <li><a href="#supported-by" id="toc-supported-by" class="nav-link" data-scroll-target="#supported-by"><span class="header-section-number">6.5</span> Supported by</a></li>
200
+ </ul>
201
+ </nav>
202
+ </div>
203
+ <!-- main -->
204
+ <main class="content" id="quarto-document-content">
205
+
206
+ <header id="title-block-header" class="quarto-title-block default">
207
+ <div class="quarto-title">
208
+ <h1 class="title"><span class="chapter-number">6</span>&nbsp; <span class="chapter-title">Sum of positive</span></h1>
209
+ </div>
210
+
211
+
212
+
213
+ <div class="quarto-title-meta">
214
+
215
+
216
+
217
+
218
+ </div>
219
+
220
+
221
+ </header>
222
+
223
+ <p>Tantangan #6/366 - 19 Feb 2024</p>
224
+ <p><a href="https://www.codewars.com/kata/5715eaedb436cf5606000381/train/r" class="uri">https://www.codewars.com/kata/5715eaedb436cf5606000381/train/r</a></p>
225
+ <p><span class="badge rounded-pill quarto-badge " style="background-color: grey;">8kyu</span> Sum of positive</p>
226
+ <section id="instruction" class="level2" data-number="6.1">
227
+ <h2 data-number="6.1" class="anchored" data-anchor-id="instruction"><span class="header-section-number">6.1</span> Instruction</h2>
228
+ <p>You get an array of numbers, return the sum of all of the positives ones.</p>
229
+ <p>Example <code>[1,-4,7,12]</code> =&gt; <code>1 + 7 + 12 = 20</code></p>
230
+ <p>Note: if there is nothing to sum, the sum is default to 0.</p>
231
+ </section>
232
+ <section id="youtube-video" class="level2" data-number="6.2">
233
+ <h2 data-number="6.2" class="anchored" data-anchor-id="youtube-video"><span class="header-section-number">6.2</span> YouTube Video</h2>
234
+ <div class="quarto-video ratio ratio-16x9"><iframe data-external="1" src="https://www.youtube.com/embed/xCvHwR52p4k?si=yoLfpHfcIBYk0j9c" title="" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen=""></iframe></div>
235
+ </section>
236
+ <section id="solution-code" class="level2" data-number="6.3">
237
+ <h2 data-number="6.3" class="anchored" data-anchor-id="solution-code"><span class="header-section-number">6.3</span> Solution Code</h2>
238
+ <p>Solusi bar-bar</p>
239
+ <div class="cell">
240
+ <div class="sourceCode cell-code" id="cb1"><pre class="sourceCode r code-with-copy"><code class="sourceCode r"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a>positive_sum <span class="ot">&lt;-</span> <span class="cf">function</span>(vec){</span>
241
+ <span id="cb1-2"><a href="#cb1-2" aria-hidden="true" tabindex="-1"></a> pos_vec <span class="ot">&lt;-</span> <span class="fu">c</span>()</span>
242
+ <span id="cb1-3"><a href="#cb1-3" aria-hidden="true" tabindex="-1"></a> <span class="cf">for</span>(i <span class="cf">in</span> vec){</span>
243
+ <span id="cb1-4"><a href="#cb1-4" aria-hidden="true" tabindex="-1"></a> <span class="cf">if</span>(i <span class="sc">&gt;</span> <span class="dv">0</span>){</span>
244
+ <span id="cb1-5"><a href="#cb1-5" aria-hidden="true" tabindex="-1"></a> pos_vec <span class="ot">&lt;-</span> <span class="fu">c</span>(pos_vec, i)</span>
245
+ <span id="cb1-6"><a href="#cb1-6" aria-hidden="true" tabindex="-1"></a> } <span class="cf">else</span> {</span>
246
+ <span id="cb1-7"><a href="#cb1-7" aria-hidden="true" tabindex="-1"></a> pos_vec <span class="ot">&lt;-</span> <span class="fu">c</span>(pos_vec, <span class="dv">0</span>)</span>
247
+ <span id="cb1-8"><a href="#cb1-8" aria-hidden="true" tabindex="-1"></a> } </span>
248
+ <span id="cb1-9"><a href="#cb1-9" aria-hidden="true" tabindex="-1"></a> }</span>
249
+ <span id="cb1-10"><a href="#cb1-10" aria-hidden="true" tabindex="-1"></a> <span class="fu">return</span>(<span class="fu">sum</span>(pos_vec))</span>
250
+ <span id="cb1-11"><a href="#cb1-11" aria-hidden="true" tabindex="-1"></a>}</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
251
+ </div>
252
+ <p>Solusi simple</p>
253
+ <div class="cell">
254
+ <div class="sourceCode cell-code" id="cb2"><pre class="sourceCode r code-with-copy"><code class="sourceCode r"><span id="cb2-1"><a href="#cb2-1" aria-hidden="true" tabindex="-1"></a>positive_sum <span class="ot">&lt;-</span> <span class="cf">function</span>(vec){</span>
255
+ <span id="cb2-2"><a href="#cb2-2" aria-hidden="true" tabindex="-1"></a> vec[vec <span class="sc">&lt;</span> <span class="dv">0</span>] <span class="ot">&lt;-</span> <span class="dv">0</span></span>
256
+ <span id="cb2-3"><a href="#cb2-3" aria-hidden="true" tabindex="-1"></a> <span class="fu">sum</span>(vec)</span>
257
+ <span id="cb2-4"><a href="#cb2-4" aria-hidden="true" tabindex="-1"></a>}</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
258
+ </div>
259
+ <div class="cell">
260
+ <div class="sourceCode cell-code" id="cb3"><pre class="sourceCode r code-with-copy"><code class="sourceCode r"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a>positive_sum <span class="ot">&lt;-</span> <span class="cf">function</span>(vec)<span class="fu">sum</span>(vec[vec<span class="sc">&gt;</span><span class="dv">0</span>])</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
261
+ </div>
262
+ </section>
263
+ <section id="test" class="level2" data-number="6.4">
264
+ <h2 data-number="6.4" class="anchored" data-anchor-id="test"><span class="header-section-number">6.4</span> Test</h2>
265
+ <div class="cell">
266
+ <div class="sourceCode cell-code" id="cb4"><pre class="sourceCode r code-with-copy"><code class="sourceCode r"><span id="cb4-1"><a href="#cb4-1" aria-hidden="true" tabindex="-1"></a><span class="fu">library</span>(testthat)</span>
267
+ <span id="cb4-2"><a href="#cb4-2" aria-hidden="true" tabindex="-1"></a></span>
268
+ <span id="cb4-3"><a href="#cb4-3" aria-hidden="true" tabindex="-1"></a><span class="fu">test_that</span>(<span class="st">'Basic tests'</span>, {</span>
269
+ <span id="cb4-4"><a href="#cb4-4" aria-hidden="true" tabindex="-1"></a> <span class="fu">expect_equal</span>(<span class="fu">positive_sum</span>(<span class="fu">c</span>(<span class="dv">1</span>,<span class="dv">2</span>,<span class="dv">3</span>,<span class="dv">4</span>,<span class="dv">5</span>)),<span class="dv">15</span>)</span>
270
+ <span id="cb4-5"><a href="#cb4-5" aria-hidden="true" tabindex="-1"></a> <span class="fu">expect_equal</span>(<span class="fu">positive_sum</span>(<span class="fu">c</span>(<span class="dv">1</span>,<span class="sc">-</span><span class="dv">2</span>,<span class="dv">3</span>,<span class="dv">4</span>,<span class="dv">5</span>)),<span class="dv">13</span>)</span>
271
+ <span id="cb4-6"><a href="#cb4-6" aria-hidden="true" tabindex="-1"></a> <span class="fu">expect_equal</span>(<span class="fu">positive_sum</span>(<span class="fu">c</span>(<span class="sc">-</span><span class="dv">1</span>,<span class="dv">2</span>,<span class="dv">3</span>,<span class="dv">4</span>,<span class="sc">-</span><span class="dv">5</span>)),<span class="dv">9</span>)</span>
272
+ <span id="cb4-7"><a href="#cb4-7" aria-hidden="true" tabindex="-1"></a> <span class="fu">expect_equal</span>(<span class="fu">positive_sum</span>(<span class="fu">c</span>()),<span class="dv">0</span>)</span>
273
+ <span id="cb4-8"><a href="#cb4-8" aria-hidden="true" tabindex="-1"></a> <span class="fu">expect_equal</span>(<span class="fu">positive_sum</span>(<span class="fu">c</span>(<span class="sc">-</span><span class="dv">1</span>,<span class="sc">-</span><span class="dv">2</span>,<span class="sc">-</span><span class="dv">3</span>,<span class="sc">-</span><span class="dv">4</span>,<span class="sc">-</span><span class="dv">5</span>)),<span class="dv">0</span>)</span>
274
+ <span id="cb4-9"><a href="#cb4-9" aria-hidden="true" tabindex="-1"></a>})</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
275
+ <div class="cell-output cell-output-stdout">
276
+ <pre><code>Test passed 🎊</code></pre>
277
+ </div>
278
+ </div>
279
+ </section>
280
+ <section id="supported-by" class="level2" data-number="6.5">
281
+ <h2 data-number="6.5" class="anchored" data-anchor-id="supported-by"><span class="header-section-number">6.5</span> Supported by</h2>
282
+ <div class="quarto-figure quarto-figure-center">
283
+ <figure class="figure">
284
+ <p><a href="https://www.starcore.co"><img src="new_starcore_logo.png" class="img-fluid figure-img"></a></p>
285
+ <figcaption class="figure-caption">StarCore Analytics</figcaption>
286
+ </figure>
287
+ </div>
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+
289
+
290
+ </section>
291
+
292
+ </main> <!-- /main -->
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+ <script id="quarto-html-after-body" type="application/javascript">
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+ window.document.addEventListener("DOMContentLoaded", function (event) {
295
+ const toggleBodyColorMode = (bsSheetEl) => {
296
+ const mode = bsSheetEl.getAttribute("data-mode");
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+ const bodyEl = window.document.querySelector("body");
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+ bodyEl.classList.add("quarto-dark");
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+ bodyEl.classList.remove("quarto-light");
301
+ } else {
302
+ bodyEl.classList.add("quarto-light");
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+ bodyEl.classList.remove("quarto-dark");
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+ }
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+ }
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+ const toggleBodyColorPrimary = () => {
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308
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309
+ toggleBodyColorMode(bsSheetEl);
310
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311
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+ anchorJS.options = {
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+ placement: 'right',
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318
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+ anchorJS.add('.anchored');
320
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321
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322
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323
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324
+ }
325
+ }
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+ return false;
327
+ }
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+ const clipboard = new window.ClipboardJS('.code-copy-button', {
329
+ text: function(trigger) {
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+ const codeEl = trigger.previousElementSibling.cloneNode(true);
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+ for (const childEl of codeEl.children) {
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+ if (isCodeAnnotation(childEl)) {
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+ childEl.remove();
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+ }
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+ }
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+ return codeEl.innerText;
337
+ }
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+ });
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+ clipboard.on('success', function(e) {
340
+ // button target
341
+ const button = e.trigger;
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+ // don't keep focus
343
+ button.blur();
344
+ // flash "checked"
345
+ button.classList.add('code-copy-button-checked');
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+ var currentTitle = button.getAttribute("title");
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+ button.setAttribute("title", "Copied!");
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+ let tooltip;
349
+ if (window.bootstrap) {
350
+ button.setAttribute("data-bs-toggle", "tooltip");
351
+ button.setAttribute("data-bs-placement", "left");
352
+ button.setAttribute("data-bs-title", "Copied!");
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+ tooltip = new bootstrap.Tooltip(button,
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+ { trigger: "manual",
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+ customClass: "code-copy-button-tooltip",
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+ offset: [0, -8]});
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+ tooltip.show();
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+ }
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+ setTimeout(function() {
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+ if (tooltip) {
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+ tooltip.hide();
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+ button.removeAttribute("data-bs-title");
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+ button.removeAttribute("data-bs-toggle");
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+ button.removeAttribute("data-bs-placement");
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+ }
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+ button.setAttribute("title", currentTitle);
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+ button.classList.remove('code-copy-button-checked');
368
+ }, 1000);
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+ // clear code selection
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+ e.clearSelection();
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+ });
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+ function tippyHover(el, contentFn) {
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+ const config = {
374
+ allowHTML: true,
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380
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+ window.tippy(el, config);
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+ }
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+ const noterefs = window.document.querySelectorAll('a[role="doc-noteref"]');
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+ for (var i=0; i<noterefs.length; i++) {
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+ const ref = noterefs[i];
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+ tippyHover(ref, function() {
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+ // use id or data attribute instead here
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+ let href = ref.getAttribute('data-footnote-href') || ref.getAttribute('href');
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+ try { href = new URL(href).hash; } catch {}
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+ const id = href.replace(/^#\/?/, "");
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+ const note = window.document.getElementById(id);
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+ return note.innerHTML;
399
+ });
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+ }
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+ let selectedAnnoteEl;
402
+ const selectorForAnnotation = ( cell, annotation) => {
403
+ let cellAttr = 'data-code-cell="' + cell + '"';
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+ let lineAttr = 'data-code-annotation="' + annotation + '"';
405
+ const selector = 'span[' + cellAttr + '][' + lineAttr + ']';
406
+ return selector;
407
+ }
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+ const selectCodeLines = (annoteEl) => {
409
+ const doc = window.document;
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+ const targetCell = annoteEl.getAttribute("data-target-cell");
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+ const targetAnnotation = annoteEl.getAttribute("data-target-annotation");
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+ const annoteSpan = window.document.querySelector(selectorForAnnotation(targetCell, targetAnnotation));
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+ const lines = annoteSpan.getAttribute("data-code-lines").split(",");
414
+ const lineIds = lines.map((line) => {
415
+ return targetCell + "-" + line;
416
+ })
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418
+ let height = null;
419
+ let parent = null;
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421
+ //compute the position of the single el (top and bottom and make a div)
422
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+ top = el.offsetTop;
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+ height = el.offsetHeight;
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427
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428
+ const bottom = lastEl.offsetTop + lastEl.offsetHeight;
429
+ height = bottom - top;
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+ }
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+ if (top !== null && height !== null && parent !== null) {
432
+ // cook up a div (if necessary) and position it
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+ let div = window.document.getElementById("code-annotation-line-highlight");
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+ if (div === null) {
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+ div = window.document.createElement("div");
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+ div.remove();
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+ }
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+ });
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+ selectedAnnoteEl = undefined;
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+ };
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468
+ const annoteDls = window.document.querySelectorAll('dt[data-target-cell]');
469
+ for (const annoteDlNode of annoteDls) {
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+ annoteDlNode.addEventListener('click', (event) => {
471
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477
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478
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479
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480
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481
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482
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483
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484
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485
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493
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495
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497
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498
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499
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500
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501
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502
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508
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509
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510
+ citeInfo.cites.forEach(function(cite) {
511
+ var citeDiv = window.document.createElement('div');
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+ citeDiv.classList.add('hanging-indent');
513
+ citeDiv.classList.add('csl-entry');
514
+ var biblioDiv = window.document.getElementById('ref-' + cite);
515
+ if (biblioDiv) {
516
+ citeDiv.innerHTML = biblioDiv.innerHTML;
517
+ }
518
+ popup.appendChild(citeDiv);
519
+ });
520
+ return popup.innerHTML;
521
+ });
522
+ }
523
+ }
524
+ });
525
+ </script>
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+ <nav class="page-navigation">
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+ <div class="nav-page nav-page-previous">
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+ <a href="./make_negative.html" class="pagination-link">
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+ <i class="bi bi-arrow-left-short"></i> <span class="nav-page-text"><span class="chapter-number">5</span>&nbsp; <span class="chapter-title">Return Negative</span></span>
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+ </div>
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+ <a href="./references.html" class="pagination-link">
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+ <span class="nav-page-text">References</span> <i class="bi bi-arrow-right-short"></i>
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+ </div>
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+ </nav>
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+ </div> <!-- /content -->
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+
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