How to read csv file in R where some values contain the percent symbol (%)

Question

Is there a clean/automatic way to convert CSV values formatted with as percents (with trailing % symbol) in R?

Here is some example dat

Answer 1

This is the same as Roland's solution except using the stringr package. When working with strings I'd recommend it though as the interface is more intuitive.

library(stringr)
d <- str_replace(junk$percent.error, pattern="%", "")
junk$percent.error <- as.numeric(d)/100