Which function to use: grep, replace, substr etc.?
On Oct 16, 2011, at 12:35 PM, syrvn wrote:
Hello, I have a simple question but I don't know which method is best to use for my problem. I have the following strings: str1 <- "My_name_is_peter" str2 <- "what_is_your_surname_peter" I would like to apply predefined abbreviations for peter=p and name=n to both strings so that the new strings look like the followings: str1: "My_n_is_p" str2: "what_is_your_surn_p" Which method is the best to use for that particular problem?
?sub # on same page as grep
> sub("(p)eter", "\\1", vec)
[1] "My_name_is_p" "what_is_your_surname_p"
David Winsemius, MD West Hartford, CT