0.1.0 first prototype

app/app.R

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+library(shiny)
+library(shinydashboard)
+library(shinydashboardPlus)
+library(shinyWidgets)
+library(shinycssloaders)
+library(data.table)
+library(Rnumerai)
+library(DT)
+
+
+# ==============================================================================
+# Leaderboard
+# ==============================================================================
+
+# Download latest leaderboard from Numerai and get a list of all models
+d_lb <- get_leaderboard()
+ls_model <- sort(d_lb$username)
+
+
+# ==============================================================================
+# Helper Functions
+# ==============================================================================
+
+# Download raw data
+download_raw_data <- function(model_name) {
+  
+  # Download data from Numerai
+  d_raw <- round_model_performances(model_name)
+  
+  # Remove rows without CORR
+  d_raw <- d_raw[!is.na(d_raw$corr), ]
+  
+  # Add the model name
+  d_raw$model <- model_name
+  
+  # Return
+  return(d_raw)
+  
+}
+
+# Reformat
+reformat_data <- function(d_raw) {
+  
+  # Keep some columns only
+  col_keep <- c("model", "corr", "corrPercentile", "corrWMetamodel", 
+                "fncV3", "fncV3Percentile", "payout", "roundPayoutFactor",
+                "roundNumber", "roundResolved", "selectedStakeValue",
+                "tc", "tcPercentile")
+  d_munged <- as.data.table(d_raw[, col_keep])
+  
+  # Reformat percentile
+  d_munged[, corrPercentile := round(corrPercentile * 100, 6)]
+  d_munged[, fncV3Percentile := round(fncV3Percentile * 100, 6)]
+  d_munged[, tcPercentile := round(tcPercentile * 100, 6)]
+  
+  # Reorder columns
+  setcolorder(d_munged, c("model", "roundNumber", "roundResolved",
+                          "selectedStakeValue",
+                          "corr", "corrPercentile", 
+                          "fncV3", "fncV3Percentile",
+                          "tc", "tcPercentile",
+                          "corrWMetamodel",
+                          "roundPayoutFactor", "payout"))
+  
+  # Rename columns
+  colnames(d_munged) <- c("model", "round", "resolved", 
+                          "stake",
+                          "corr", "corr_pct",
+                          "fncv3", "fncv3_pct",
+                          "tc", "tc_pct", 
+                          "corr_meta",
+                          "pay_ftr", "payout")
+  
+  # Return
+  return(d_munged)
+  
+}
+
+
+# ==============================================================================
+# UI
+# ==============================================================================
+
+ui <- shinydashboardPlus::dashboardPage(
+  
+  title = "Shiny Numerati",
+  
+  skin = "black-light",
+  
+  options = list(sidebarExpandOnHover = TRUE),
+  
+  header = shinydashboardPlus::dashboardHeader(
+    title = "✨ Shiny Numerati",
+    userOutput("user")
+  ),
+  
+  sidebar = shinydashboardPlus::dashboardSidebar(
+    id = "sidebar",
+    sidebarMenu(
+      menuItem(text = "Start Here", tabName = "start", icon = icon("play")),
+      menuItem(text = "Performance", tabName = "performance", icon = icon("line-chart")),
+      menuItem(text = "Payout", tabName = "payout", icon = icon("credit-card")),
+      menuItem(text = "About", tabName = "about", icon = icon("question-circle"))
+    ), 
+    minified = TRUE,
+    collapsed = FALSE
+  ),
+  
+  body = dashboardBody(
+    
+    tabItems(
+      
+      # ========================================================================
+      
+      tabItem(tabName = "start", 
+              
+              fluidPage(
+                
+                markdown("# **Shiny Numerati**"),
+                markdown("### Community Dashboard for the Numerai Classic Tournament"),
+                
+                br(),
+                
+                fluidRow(
+                  
+                  column(6, 
+                         
+                         markdown("## **Step 1 - Select Your Models**"),
+                         
+                         markdown("### First, click this ⬇"),
+                         
+                         pickerInput(inputId = "model",
+                                     label = " ",
+                                     choices = ls_model,
+                                     multiple = TRUE,
+                                     width = "100%",
+                                     options = list(
+                                       `title` = "---------->>> HERE <<<----------",
+                                       `header` = "Notes: 1) Use the search box below to find and select your models. 2) Use 'Select All' for quick selection.",
+                                       size = 20,
+                                       `actions-box` = TRUE,
+                                       `live-search` = TRUE,
+                                       `live-search-placeholder` = "For example, try  lgbm_v4  or  integration_test",
+                                       `virtual-scroll` = TRUE,
+                                       `multiple-separator` = ", ",
+                                       `selected-text-format`= "count > 3",
+                                       `count-selected-text` = "{0} models selected (out of {1})",
+                                       `deselect-all-text` = "Deselect All",
+                                       `select-all-text` = "Select All"
+                                     )
+                         )
+                  ),
+                  
+                  column(6,
+                         
+                         markdown("## **Step 2 - Download Data**"),
+                         
+                         markdown("### Next, click this ⬇ (it may take a while)"),
+                         
+                         br(),
+                         
+                         actionBttn(inputId = "button_download", 
+                                    label = "Download Data from Numerai",
+                                    color = "primary",
+                                    icon = icon("cloud-download"),
+                                    style = "gradient",
+                                    block = TRUE
+                         )
+                  )
+                ),
+                
+                br(),
+                
+                h3(strong(textOutput(outputId = "text_download"))),
+                verbatimTextOutput(outputId = "print_download"),
+                
+                br(),
+                
+                h3(strong(textOutput(outputId = "text_preview"))),
+                shinycssloaders::withSpinner(DTOutput("dt_model")),
+                
+                br(),
+                
+                h3(strong(textOutput(outputId = "text_next")))
+                
+              )
+      ),
+      
+      # ========================================================================
+      
+      tabItem(tabName = "performance", 
+              fluidPage(
+                markdown("![image](https://media.giphy.com/media/cftSzNoCTfSyAWctcl/giphy.gif)")
+              )
+      ),
+      
+      tabItem(tabName = "payout", 
+              fluidPage(
+                markdown("![image](https://media.giphy.com/media/cftSzNoCTfSyAWctcl/giphy.gif)")
+              )
+      ),
+      
+      # ========================================================================
+      
+      tabItem(tabName = "about", 
+              markdown("## **About this App**"),
+              markdown('#### Yet another Numerai community dashboard by <b><a href="https://linktr.ee/jofaichow" target="_blank">Jo-fai Chow</a></b>.'),
+              
+              br(),
+              markdown("## **Acknowledgement**"),
+              markdown("#### This hobby project was inspired by Rajiv's <a href='https://huggingface.co/spaces/rajistics/shiny-kmeans' target='_blank'>shiny-kmeans</a> on 🤗 Spaces."),
+              
+              br(),
+              markdown("## **Changelog**"),
+              markdown(
+                "
+                - #### **0.1.0** — First prototype with an interactive table output
+                "),
+              br(),
+              markdown("## **Session Info**"),
+              verbatimTextOutput(outputId = "session_info")
+      )
+      
+      # ========================================================================
+      
+    ) # end of tabItems
+    
+  ),
+  
+  footer = shinydashboardPlus::dashboardFooter(
+    left = "Powered by ❤️, ☕, Shiny, and 🤗 Spaces",
+    right = paste0("Version 0.1.0"))
+  
+)
+
+
+
+# ==============================================================================
+# Server
+# ==============================================================================
+
+server <- function(input, output) {
+  
+  # About Joe
+  output$user <- renderUser({
+    dashboardUser(
+      name = "JC",
+      image = "https://numerai-public-images.s3.amazonaws.com/profile_images/aijoe_v5_compressed-iJWEo1WeHkpH.jpg",
+      subtitle = "@matlabulous",
+      footer = p('"THE NMR LIFE CHOSE ME."', class = 'text-center')
+    )
+  })
+  
+  
+  # ============================================================================
+  # Reactive --> Download Model Data
+  # ============================================================================
+  
+  react_download <- eventReactive(input$button_download, {sort(input$model)})
+  
+  output$print_download <- renderPrint({react_download()})
+  
+  output$text_download <- renderText({
+    if (length(react_download()) >= 1) "Your Selection:" else " "
+  })
+  
+  output$text_preview <- renderText({
+    if (length(react_download()) >= 1) "Data Preview:" else " "
+  })
+  
+  output$text_next <- renderText({
+    if (length(react_download()) >= 1) "⬅ [Coming Soon] Performance and Payout Charts 📈📊🔥" else " "
+  })
+  
+  react_d_model <- eventReactive(
+    input$button_download,
+    {
+      
+      # Download dataframes one by one (may parallelise this in the future)
+      d_raw <- c()
+      for (item in input$model) d_raw <- rbind(d_raw, download_raw_data(item))
+      
+      # Data munging
+      d_munged <- reformat_data(d_raw)
+      
+      # Return final result
+      d_munged
+      
+    }
+  )
+  
+  output$dt_model <- DT::renderDT({
+    
+    DT::datatable(
+      
+      # Data
+      react_d_model(),
+      
+      # Other Options
+      rownames = FALSE,
+      extensions = "Buttons",
+      options =
+        list(
+          dom = 'Bflrtip', # https://datatables.net/reference/option/dom
+          buttons = list('csv', 'excel', 'copy', 'print'), # https://rstudio.github.io/DT/003-tabletools-buttons.html
+          order = list(list(0, 'asc'), list(1, 'asc')),
+          pageLength = 5,
+          lengthMenu = c(5, 10, 20, 100, 500, 1000, 50000),
+          columnDefs = list(list(className = 'dt-center', targets = "_all")))
+    ) |>
+      
+      # Reformat individual columns
+      formatRound(columns = c("corr", "tc", "fncv3", "corr_meta", "pay_ftr"), digits = 4) |>
+      formatRound(columns = c("corr_pct", "tc_pct", "fncv3_pct"), digits = 1) |>
+      formatRound(columns = c("stake", "payout"), digits = 2) |>
+      
+      formatStyle(columns = c("model"),
+                  fontWeight = "bold") |>
+      
+      formatStyle(columns = c("stake"),
+                  fontWeight = "bold",
+                  color = styleInterval(cuts = -1e-15, values = c("#D24141", "#2196F3"))) |>
+      
+      formatStyle(columns = c("corr", "fncv3"),
+                  color = styleInterval(cuts = -1e-15, values = c("#D24141", "black"))) |>
+      
+      formatStyle(columns = c("tc"),
+                  color = styleInterval(cuts = -1e-15, values = c("#D24141", "#A278DC"))) |>
+      
+      formatStyle(columns = c("corr_pct", "tc_pct", "fncv3_pct"),
+                  color = styleInterval(cuts = c(1, 5, 15, 85, 95, 99), 
+                                        values = c("#692020", "#9A2F2F", "#D24141", 
+                                                            "#D1D1D1", # light grey
+                                                            "#00A800", "#007000", "#003700"))) |>
+                                                              
+      formatStyle(columns = c("payout"),
+                  fontWeight = "bold",
+                  color = styleInterval(cuts = c(-1e-15, 1e-15), 
+                                        values = c("#D24141", "#D1D1D1", "#00A800")))
+    
+  })
+  
+  
+  # ============================================================================
+  # Session Info
+  # ============================================================================
+  
+  output$session_info <- renderPrint({
+    sessionInfo()
+  })
+  
+}
+
+
+# ==============================================================================
+# App
+# ==============================================================================
+
+shinyApp(ui, server)
+