We all know R is the first choice for statistical analysis and data visualisation, but what about big data munging? tidyverse (or we’d better say hadleyverse) has been doing a lot in this field, nevertheless it is often the case this kind of activities being handled from some other ... [Read more...]

Joe Russell If you were to ask any R-user for the reason for R’s success, you’re almost guaranteed to hear the words “open source”.  As the second most popular open source language (behind Python) R has exploded in popularity in … Continue reading → [Read more...]

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To stay on top of R in the news, we’re sharing some stories related to R published last week. Why Data Science ‘Rock Stars’ Earn Big Salaries (Dennis McCafferty) Recent post and slide deck related to the 2016 Data Science Salary Survey (O’Reilly Media), with R mentioned as one ... [Read more...]

Getting introduced to Google and their API Previously we constructed a data frame that consisted out of the following variables that we might want to perform analysis on: ## [1] "wine_farms" "wine_year" "wine_name" "points" "price" ## ... [Read more...]

Abstract We show how to create cartograms with R by illustrating the population and age-distribution of the planning regions of Berlin by static plots and animations. This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The markdown+Rknitr source code of this blog is available under a GNU ... [Read more...]

Purpose I recently completed a set of data science for biostatistics training exercises for graduate students. I extensively used R for Data Science and Efficient R programming to develop a set of Adventure Time R-statistics slide decks. Whilst I recognize that they are very minimal in terms of text, I ... [Read more...]

It’s always nice when 12-month old code runs without a hitch. Not sure why this did not become a Github repo first time around, but now it is: my RMarkdown code to generate a report using data from the Nobel Prize API. Now you too can generate a “gee, ... [Read more...]

Hey there! We’ve been sharing R exercise sets for about a year, and think this is a good moment to reflect and ask for your feedback. So here is your opportunity to have a say in where we take R-exercises next! We’d like to hone in a bit ... [Read more...]

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I will continue to work out of the The Practice Of Statistics 4th edition book and recreate some histograms. I used the data on page 35 in Chapter 1. My students will be getting this lesson this week. After they make their firs histograms, I’ll have them compare the R histogram ... [Read more...]

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If you ever find yourself trying to align assignment operators for a chunk of code in RStudio, then you are in luck: Align Assign makes this as easy as a mouse-click or a keyboard-shortcut. What? Align Assign is an RStudio addin which does a straight, no-frills alignment of every first-occurring ... [Read more...]

Creating sample data is a common task performed in many different scenarios. R has several base functions that make the sampling process quite easy and fast. Below is an explanation of the main functions used in the current set of exercices: 1. set.seed() – Although R executes a random mechanism of ... [Read more...]

Recently Microsoft Data Scientist Bob Horton wrote a very nice article on ROC plots. We expand on this a bit and discuss some of the issues in computing “area under the curve” (AUC). R has a number of ROC/AUC packages; for example ROCR, pROC, and plotROC. But it is ... [Read more...]

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In case you missed them, here are some articles from September of particular interest to R users. The R-Ladies meetups and the Women in R Taskforce support gender diversity in the R community. Highlights from the Microsoft Data Science Summit include recordings of many presentations about R, and the keynote "... [Read more...]

The tint package is now on CRAN. Its name stands for Tint Is Not Tufte and it offers a fresh take on the excellent Tufte-style html (and now also pdf) presentations. As a little teaser, here is what the html variant looks like: and the full under... [Read more...]