regex - Remove numbers from alphanumeric characters

Question

I have a list of alphanumeric characters that looks like:

x <-c('ACO2', 'BCKDHB456', 'CD444')

I would like the following output:

x <-c('ACO', 'BCKDHB', 'CD')

Any suggestions?

# dput(tmp2)

structure(c(432L, 326L, 217L, 371L, 179L, 182L, 188L, 268L, 255L,..., 
), class = "factor")

Answer 1

You can use gsub for this:

gsub('[[:digit:]]+', '', x)

or

gsub('[0-9]+', '', x)
# [1] "ACO"    "BCKDHB" "CD"