1902 search results for "rstudio"

Google scholar scraping with rvest package

January 1, 2016
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Google scholar scraping with rvest package

In this post, I will show how to scrape google scholar. Particularly, we will use the 'rvest' R package to scrape the google scholar account of my PhD advisor. We will see his coauthors, how many times they have been cited and their affiliations. “rvest, inspired by libraries like beautiful soup, makes it easy to

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The R-Podcast Episode 15: Introduction to Shiny

December 31, 2015
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Just in time for the new year is a new episode of the R-Podcast! I give a brief introduction to the Shiny package for creating web applications using R code, provide some of my tips and tricks I have learned (sometimes the hard way) when creating appl...

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bayes.js: A Small Library for Doing MCMC in the Browser

December 30, 2015
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Bayesian data analysis is cool, Markov chain Monte Carlo is the cool technique that makes Bayesian data analysis possible, and wouldn’t it be coolness if you could do all of this in the browser? That was what I thought, at least, and I’ve now made bayes.js: A small JavaScript library that implements an adaptive MCMC sampler and a...

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Write in-line equations in your Shiny application with MathJax

December 30, 2015
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Write in-line equations in your Shiny application with MathJax

I've been working on a Shiny app and wanted to display some math equations. It's possible to use LaTeX to show math using MathJax, as shown in this example from the makers of Shiny. However, by default, MathJax does not allow in-line equations, because the dollar sign is used so frequently. But I needed to...

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How to Pimp Your .Rprofile

December 30, 2015
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After you’ve been using R for a little bit, you start to notice people talking about their .Rprofile as if it’s some mythical being. Nothing magical about it, but it can be a big time-saver if you find yourself typing things like, “summary()” or, the ever-hated, “stringasfactors=FALSE” ad nauseam. Where is my .Rprofile? The simple

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ggplot2 version 2 adds extensibility and other improvements

December 28, 2015
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ggplot2 version 2 adds extensibility and other improvements

Despite the ggplot2 project — the most popular data visualization package for R — being in maintenance mode, RStudio's Hadley Wickham has given the R community a surprise gift with a version 2.0.0 update for ggplot2. According to Hadley this is a "huge" update with more than 100 fixes and improvements. The most significant addition is that ggplot2 now...

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R-Markdown and Knitr Tutorial (Part 1)

December 28, 2015
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R-Markdown is a great way to create dynamic documents with embedded chunks of R code. The document is self contained and fully reproducible which makes it very easy to share. This post will be the first in a multi part series on how to embed Plotly graphs in R-Markdown documents as well as presentations. R-Markdown

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How to create a Twitter Sentiment Analysis using R and Shiny

December 26, 2015
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How to create a Twitter Sentiment Analysis using R and Shiny

Everytime you release a product or service you want to receive feedback from users so you know what they like and what they don’t. Sentiment Analysis can help you. I will show you how to create a simple application in R and Shiny to perform Twitter Sentiment Analysis in real-time. I use RStudio. We will

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Get The Best R Books For Just $5

December 26, 2015
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tl;dr: Get every book about R & related topics for just $5 at Packt Publishing until the end of this year. Packt Publishing is currently offering a special sales campaign. You can buy every book for only 5 Dollar until the end of this year. We think, this is a great chance to broaden your R The post

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Analyzing networks of characters in ‘Love Actually’

December 25, 2015
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Analyzing networks of characters in ‘Love Actually’

Every Christmas Eve, my family watches Love Actually. Objectively it’s not a particularly, er, good movie, but it’s well-suited for a holiday tradition. (Vox has got my back here). Even on the eighth or ninth viewing, it’s impressive what an intricate network of characters it builds. This got me wondering how we could visualize the connections quantitatively, based...

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