Nothing
d <- read.csv("a resource with spaces.csv")
png("a graph with spaces.png")
par(mar = c(15, 4, .5, .5))
barplot(setNames(dat$number, dat$name), las = 2)
dev.off()
Any scripts or data that you put into this service are public.
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.