[R] how to exclude certain keywords in strings
ru|pb@rr@d@@ @end|ng |rom @@po@pt
Fri Oct 12 12:28:22 CEST 2018
If you want to remove everything from the last underscore to the end of
the string, this regex is better.
Note that you don't need gsub, 'g' is to replace all matches.
x <- c("StationName1_temp.csv", "Station_Name1_temp.csv",
sub("_[^_]*$", "", x)
# "StationName1" "Station_Name1" "StationName2"
Hope this helps,
Às 05:03 de 12/10/2018, lily li escreveu:
> I just figured this out, which seems to be a simple question. I just used
>> Hi R users,
>> I don't know how to extract certain words in strings. For example, if I
>> have strings like the formats "StationName1_temp.csv",
>> "StationName2_temp.csv", etc. How to get strings like these "StationName1",
>> "StationName2", etc? That is to say, I want to exclude the keywords
>> "_temp.csv", but I could not find a clue online. Thanks for your help.
> [[alternative HTML version deleted]]
> R-help using r-project.org mailing list -- To UNSUBSCRIBE and more, see
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
More information about the R-help