[R] R grep question

[Jeff Newmiller]

Post in plain text

Use grepl

On May 26, 2021 9:29:10 PM PDT, Kai Yang via R-help <r-help using r-project.org> wrote:
>Hi List,
>I wrote the code to create a new variable:
>CRC$MMR.gene<-ifelse(grep("MLH1"|"MSH2",CRC$gene.all,value=T),"Yes","No")
> 
>
>I need to create MMR.gene column in CRC data frame, ifgene.all column
>contenes MLH1 or MSH2, then the MMR.gene=Yes, if not,MMR.gene=No
>
>But, the code doesn't work for me. Can anyone tell how to fix the code?
>
>Thank you,
>
>Kai
>	[[alternative HTML version deleted]]
>
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-- 
Sent from my phone. Please excuse my brevity.