How to use regular expression in a gsub

[cmartins]

Hello

How can I use a regular expression in the gsub function.
I want to change from lower to upper case without use "toupper"

something like this did not work:
gsub(/[a-z]/,/[A-Z]/)


Is there a way to do it ?
Regards
Claudemir F Martins

 

[CaKiwi]

You can only use a regular expression in the search string, in the replace string it is just a character string. I can't think of a way to do what you want using gsub(). You will either have to get over your distaste for toupper or write a loop to test and modify each character. CaKiwi

 

[marsd]

Try gensub and toupper for a little more selectivity if that is the problem.