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Showing posts from July, 2012

Sourcing Code from GitHub

In previous posts I described how to input data stored on GitHub directly into R . You can do the same thing with source code stored on GitHub . Hadley Wickham has actually made the whole process easier by combining the getURL , textConnection , and source commands into one function: source_url . This is in his devtools package. Imagine we have a .R source code file like this: # Make cars scatter plot library(ggplot2) Plot <- qplot(cars$dist, cars$speed) + theme_bw() print(Plot) It is hosted on GitHub with the URL: https://raw.github.com/christophergandrud/christophergandrud.github.com/master/SourceCode/CarsScatterExample.R So to run this source code directly in R all we need to type is: library(devtools) SourceURL <- "https://raw.github.com/christophergandrud/christophergandrud.github.com/master/SourceCode/CarsScatterExample.R" source_url(SourceURL) There you go. You can also directly source GitHub gists (which are nice for shari