On 13-05-13 4:19 AM, Francesco Isotta wrote:
Hello,
it is not clear to me, how to search if in a string there is a "." (full
stop).
Using:
grepl(".",string)
doesn't work because the full stop it is a metacharacter (it gives "TRUE"
also if no full stop is in the character).
Use grepl(".", string, fixed=TRUE).
I tried also to insert \. but it
does not work.
You did not insert \., because you'd need to escape the backslash to do
that. grepl("\\.", string) would work.
Duncan Murdoch
grepl("\.",string)
Error: '\.' is an unrecognized escape in character string starting "\."
Thank you very much for your help
Francesco
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