Hello,
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",
"StationName2_temp.csv")
sub("_[^_]*$", "", x)
#[1] "StationName1" "Station_Name1" "StationName2"
Hope this helps,
Rui Barradas
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
gsub("_temp.csv","","StationName1_temp.csv").
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@r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
______________________________________________
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
