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bearloga/Embed Plot in HTML.R

Created February 6, 2015 20:33
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Sometimes you just want to send a report to someone as a single HTML file (e.g. when PDF isn't an option) and you want to avoid the hassle of external images. This code lets you convert a plot in R into base64 string that you can include in the HTML source.
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Embed Plot in HTML.R
library(base64) # install.packages('base64')
pngfile <- tempfile()
png(pngfile,width=600,height=600,pointsize=12) # adjust as needed
# Plotting code...
dev.off()
# Prints the HTML code to console
cat(img(pngfile))
# Copy and paste the whole output into your HTML source to embed the image
unlink(pngfile) # clean up
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