[R] add specific fields in for loop
Rui Barradas
ru|pb@rr@d@@ @end|ng |rom @@po@pt
Tue Nov 15 19:53:58 CET 2022
Às 16:18 de 15/11/2022, Kai Yang via R-help escreveu:
> Hi Team,
> I can write a for loop like this:
> for (i in columns(df)){
> ......
> }
>
> But it will working on all column in dataframe df. If I want to work on some of specific fields (say: the fields' name content 'date'), how should I modify the for loop? I changed the code below, but it doesn't work.
> for (i in columns(df) %in% 'date' ){
> .....
> }
>
>
> Thank you,
> Kai
>
> [[alternative HTML version deleted]]
>
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Hello,
Something like this?
for(i in grep("date", names(df))) {
#
}
Hope this helps,
Rui Barradas
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