[R] Tell the difference between characters

[Henrique Dallazuanna]

Try this:

sapply(apply(sapply(temp, charToRaw), 2, unique), length) == 1

On Tue, Apr 26, 2011 at 3:09 PM, Lisa <lisajca at gmail.com> wrote:
> Dear all,
>
> I just want to determine if the characters in a character string are the
> same or not. For example,
>
> temp <- c("aa", "aA", "ab")
>
> How do I determine the first one have the two same “a”, and the second and
> third have the different characters? Thanks in advance.
>
> Lisa
>
>
>
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-- 
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O