[R] Extract upper case letters

[R. Michael Weylandt]

How do you want your output? If you want a character vector of
lowercase letters, just use gsub("[^::A-Z::]","", t) to substitute ""
for all non-uppercase characters. strsplit() can lead you to a vector
of the single-letter upper case letters.

Best,
Michael

On Wed, Jun 27, 2012 at 2:15 PM, mdvaan <mathijsdevaan at gmail.com> wrote:
> t <- "TheWeatherIsVeryNice"
>
> How do I extract the upper case letters? - TWIVN
>
> Thanks!
>
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