How to replace a pie chart
Bar plot The most common way a pie chart can be improved is by turning it into a bar chart, with categories on the x axis and percentages on the y-axis. This doesn’t apply to all plots, but it does to this one. library(ggplot2) theme_set(theme_bw()) ggplot(d, aes(Hours, Percentage)) + geom_bar(stat = "identity") + facet_wrap(~Task) Note that much like the original pie chart, we “faceted” (divided
Why I use ggplot2
David Robinson Director of Data Scientist at Heap, works in R. Email Twitter Github Stack Overflow Subscribe Recommended R Bloggers RStudio Blog R4Stats Simply Statistics Upfront If you’ve read my blog, taken one of my classes, or sat next to me on an airplane, you probably know I’m a big fan of Hadley Wickham’s ggplot2 package, especially compared to base R plotting. Not everyone agrees. Among th
One year as a Data Scientist at Stack Overflow
David Robinson Director of Data Scientist at Heap, works in R. Email Twitter Github Stack Overflow Subscribe Recommended R Bloggers RStudio Blog R4Stats Simply Statistics Upfront One day in January 2013 I found myself wasting time on the internet. This wasn’t a good idea: I was as busy as anyone 2.5 years into their PhD. I had to finish a presentation on some yeast genetics research, I was months
K-means clustering is not a free lunch
David Robinson Director of Data Scientist at Heap, works in R. Email Twitter Github Stack Overflow Subscribe Recommended R Bloggers RStudio Blog R4Stats Simply Statistics Upfront I recently came across this question on Cross Validated, and I thought it offered a great opportunity to use R and ggplot2 to explore, in depth, the assumptions underlying the k-means algorithm. The question, and my respo
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