How to convert character of percentage into numeric in R

Question

I run into a problem when converting character of percentage to numeric. E.g. I want to convert \"10%\" into 10%, but

as.numeric(\"10%\")

r

Answer 1

Remove the "%", convert to numeric, then divide by 100.

x <- c("10%","5%")
as.numeric(sub("%","",x))/100
# [1] 0.10 0.05