It’s better to visualize the data rather texting it. The brain anatomy also says that, our brain process images up to 60 times faster than written data. So visualizing is much better than writing the facts and that gave rise to big data visualization. Depicting the facts and analysis report is much better than documenting it. In other words data visualization is a visual representation of results obtained from various analyses.
The data visualization tools are so easy to implement and are dynamic in nature that on changing of data it quickly changes its fact and graphic representation, so it simply means that data visualization tools has a property of real time support. The main goal is to be able to communicate the information clearly and efficiently.
Recent trends in Business intelligence influence many areas such as big data analytics, social collaboration, social networking and some other useful areas of cloud computing. Data visualization affects these trends, being a consumer or creator and these tools also helps the market competitors to stay ahead in BI industries.
It is very much important to know the target audience to quickly establish the story board, making to understand the approach and efficiently gathering the user’s data and visual requirements. Depending upon the audience that comprises of managers, domain experts or some higher level vice president of an organization our resulting data visualization must be very high and accurate for gaining an insight and giving a 360 degree view, allowing the audience to drill down for some key details.
Data visualization tells very clearly the whole story line of how the things are going to proceed. This technology gives a clear narrative that must include complete plot. After successful data visualization session a person should be clearly able to identify key measurements that can be easily viewed, managed and monitored as well. Many of the tools focus on the data that is actually needed to be addressed for a specific domain.
A real world problem solving example of data visualization, where counting some unique words within the artist, taking a sample data of 35,000 lyrics. This helps in solving a real time use cases within the music industry.
Many tools used for data visualization are open source and there are many of the free applications that can be used for data visualization and also used with some programming technologies such as JSON (Java Script object Notation), HTML 5 or dominating languages like python. Some of the tools used are-:
It is best suited for showing data of country, state or street views. It uses vector graphics and supports Java script for image and vector tiled maps. It is also helpful in displaying complex datasets over Maps.
Data visualization tool designed for dynamic data visualization that can integrate, prepare and analyze any kind of data, highly suitable for end to end data visualization that can be used with hadoop that makes the data simple for their audience. It has a compatibility feature with hadoop that combines self-service data integration technology.
Step 1: Downloading the latest release of Datameer from my.datameer.com, unzipping the installed file, and then changing the working directory.
Step2: Adding a new user and adding a new group (using traditional linux commands), changing the owner and user of the group.
Step3: Configuring the Datameeer by editing the /etc/das-env.sh allocating additional memory to and changing from 1 GB to 2 GB.
In order to install our own custom database, so that we can connect with other type of databases for our existing database for Apache hadoop, each of the database installation has its own installation instructions.
We can install various versions of this distribution for running Datameer and making the things enable in order to have a correct data visualization tool. With the help of Datameer visualization tool we can easily manage our data in graphical form and will be able to perform fast and reliable Business intelligence logics.
After installation of Datameer, we will be provided with a dashboard that we will be using with hadoop, furthermore there are many techniques that channel the specific data to Datameer for visualization.
This article describes the data visualization technologies and makes the users to enable the use of this powerful tool so that they can be able to visualize the massive raw and unstructured data. We have also discussed about one of the prominent data visualization tool for implementing in hadoop that gives an insight to make data visualization a better technology for big data analysis.
There are many ways to build a mobile app – easy and difficult ones. There are tools that allow you to build mobile apps easily, without spending too much time. But will these easy tools give you the best results? Xamarin vs React Native: Best Framework For Your Next App
The overall quality of a mobile app is of utmost importance. We can’t sacrifice quality just because we can quickly and easily complete a mobile app project.
On the other hand, you may not want to spend a huge amount of time and money building an app. Rather, we need tools that allow us to develop great quality mobile apps without spending too much time.
Actually, development time and product quality are not the only factors that we should consider while choosing a mobile app development framework. There are other important factors like development environment, community support, and so on.
Xamarin and React Native are two hot and trending technologies for cross-platform mobile app development. But which one should you choose? Which tool is best for your business?
In this comparative guide, I will discuss with you the most important factors that you should consider while choosing between Xamarin and React Native for your next mobile app.
Xamarin by Microsoft is an open-source, mobile app development software. You can build Android, iOS, and Windows apps using this tool. In Xamarin, you have to write code in C#.
React Native by Facebook is also an open-source mobile app development tool that lets you build mobile apps for Android, iOS, and Windows. In React Native, you have to write code in JavaScript and React.
For Xamarin, the only development environment you have is Visual Studio. Although there are other options, Visual Studio is the only suitable platform. It’s inconvenient to use Xamarin in other development environments. You can download Visual Studio with Xamarin from this link.
React Native lets you develop mobile apps using different IDEs and text editors such as Atom, Sublime Text, Visual Studio Code, Vim Editor, Nuclide, Spacemacs Editor, Deco IDE, TextMate Editor, and so on. There is so much flexibility. You can choose from several text editors and IDEs. For your mobile app development project, select the one that you like the most.
We just discussed that the only suitable development environment we have for Xamarin is Visual Studio, which means that there is not much flexibility. But you have to keep in mind that this is an awesome IDE with useful features, which makes the life of a developer a lot easier.
In Visual Studio, you get all the development tools in one place, which speeds up your mobile app development process.
When you make some modifications in your code, you don’t need to recompile your code. Using the Hot Reloading feature in React Native, you can reload your app instantly without recompiling. This feature saves you a ton of time while in Visual Studio, you have to compile each and every time you make changes in your code.
Xamarin: Xamarin gives you near-native performance by using platform-specific hardware acceleration. You can’t achieve this kind of performance with platforms where the code is interpreted at runtime.
React Native: When you’re building a mobile app using React Native, you’re not building an HTML5 app, a mobile web app, or a hybrid app. Rather, you’re building a real mobile app that will be fast enough. React Native lets you use native code. For a better performance, you can also build a part of your application using native code.
According to Xamarin.com, more than 15,000 companies use this platform. Top companies that use Xamarin are Cognizant, BOSCH, 3M, Honeywell, slack, JetBlue, etc.
A great number of companies including Fortune 500 companies are using React Native. This framework has been used in apps like Facebook, F8, Instagram, Skype, Facebook Ads Manager, Skype, Airbnb, Tesla, Walmart, Bloomberg, Chop, Artsy, Discord, SoundCloud Pulse, and so on.
Xamarin has been there for quite a long time. So there’s a good community support and assistance available for this platform.
A great number of blog posts and tutorials have been written about Xamarin and there are a huge number of questions and answers about Xamarin on Q&A sites like StackOverflow. So if you get stuck somewhere while coding in Xamarin, you will most probably find relevant information on the Internet to solve your problem.
React native is comparatively a new framework. So there’s a small amount of information available about it on the Internet. But if you face any problems or have any questions, you can get reliable answers by asking questions on Q&A sites and forums.
It’s a cross-platform mobile app development tool from Facebook. You have to write code in JavaScript and React.
• Shared code: If you’re building an app for multiple platforms (like Android, iOS, etc.), you can reuse most of your code in your app for the other platforms.
• Licensing cost: As the business license cost starts at $999, it will be hard for many companies to afford it. Without purchasing a business package, you won’t
be able to create multiple accounts for your developers. So, it will be difficult for your developers to work together on a project.
• Slower than native apps: With Xamarin, you can achieve high performance. But apps built with Xamarin will not be faster than native Android apps built with Java and native iOS apps built with Objective-C and Swift.
• Direct use of native code: You can use both, React Native and native code to optimize your app to a great level.
• Navigation issues: The navigation of your mobile app will not be as good as native navigation. A navigation designed using React Native is not that smooth.
• Slower than native apps: Like Xamarin, React Native also lets you develop high-performance apps. But apps built with React Native will not be faster than native Android apps built with Java and native iOS apps built with Objective-C and Swift.
I don’t have a straightforward answer to this question because both of these frameworks are really great, have impressive features, and help you develop high-quality apps in less time. In this article, I have discussed several factors with you such as development environments, performance, etc. Now taking all the important factors into consideration, you have to decide which one might work best for you!
Which framework would be the right fit for your next mobile app? And why? Let us know in the comments section.
Completely disagree with you in terms of community support, RN community is vibrant and overwhelmingly stronger. And there is way more articles and learning options than for xamarin. Plus, they are of much better quality.
After installing Red Hat, we need to know how to use it. This is going to be the subject of this article. Have a nice reading!!
This is the login screen. To use the system, you need first to authenticate to the system, by providing your credentials. Credentials are valid user and password. In our case, type root as a user (and press Enter), and redhat as its password (and press Enter again).
This is called the Shell. In the first article of this series “Red Hat Linux Administration – (1) Introduction“, I told you that the Linux shell is an interactive command-line interface where a user can type a command, and get its result(s). I told you also that the Linux shell lies of top of the kernel (which is the core of the Linux operating system).
Over years, several shells have been developed. The most used, well-known types are Bourne Shell sh, Korn Shell ksh, C-Shell csh, and the Bourne-Again Shell bash. Each shell has its own features, and uses. The default shell in Red Hat Linux is the Bash Shell.
So, a user is first asked to present what proves he is a legal authentic user of the system. When his credentials are verified, a startup program is loaded for that user. The default startup program for Linux users is the (bash) shell.
Almost all your work is done from the shell. That is an important reason for you to learn and master using shell. Of course, that will not happen in a day!! But, let me tell you something: stay with us, and you will be not only a shell master, but a master of Linux as well. Promise!!
The whole structure of bash shell prompt is changeable using an environment variable PS1. Later, when we come to customizing the bash shell, and to using Environment Variables, we will see how to play with this variable to change the shell prompt as you prefer.
ARGUMENTs are zero or more data items needed for the command to execute. Most of the time, arguments are file names or directory paths.
The shell works like a command-line interpreter, where commands are typed, executed, and have their results displayed to the user.