[R] if else statement

Richard O'Keefe
Tue, 05 May 2020 00:41:53 -0000

Your ifelse expression looks fine.  What goes wrong with it?

On Tue, 5 May 2020 at 05:16, Ana Marija <sokovic.anamarija at gmail.com>
wrote:
>
> Hello,
>
> I have a data frame like this:
>
> > head(b)
>        FID   IID FLASER PLASER
> 1: fam1000 G1000      1      1
> 2: fam1001 G1001      1      1
> 3: fam1003 G1003      1      2
> 4: fam1005 G1005      1      1
> 5: fam1009 G1009      NA      2
> 6: fam1052 G1052      1      1
> ...
> > unique(b$PLASER)
> [1]  1  2 NA
> > unique(b$FLASER)
> [1]  1  2 NA
>
> how can I do if else statement so that I am creating a
> PHENO =2 if b$FLASER=2 or b$PLASER=2
> PHENO=1 if b$FLASER=1 and b$PLASER=1
> otherwise PHENO=NA
>
> I tried this but I am not sure if this is correct:
> b$pheno=ifelse(b$PLASER==1 & b$FLASER==1,1,ifelse(b$PLASER==2 |
> b$FLASER==2,2,NA))
>
> Thanks
> Ana
>
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>
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