Re: [R] how to create a new column with conditions

On April 8, 2020 1:17:38 PM PDT, Ana Marija wrote: | Hi, | | I have a data frame like this: Or ... *drum-roll* ... you could use plain old indexing. Have a look: a <- "FIDLASER2 CURRELIGPLASER RTNPTHY fam1000_G1000 1 1 1 1 fam1001_G1001 1 1 1

Re: [R] how to create a new column with conditions

>I would like to create a new column called PHENO which would satisfy >these >conditions: > >if CURRELIG=1 and RTNPTHY=1 than PHENO=1 >if PLASER=2 than PHENO=2 >otherwise is -9 I assume that if CURRELIG==1 and RNPTHY==1 and PLASER==2 then PHENO should be 1. Or should that case flag a data error?.

Re: [R] how to create a new column with conditions

Now that you have been shown how to do this, post your (non-working) code next time. And configure your email program to send plain text so we will see what you saw. a$PHENO <- ifelse( a$CURRELIG==1 & a$RTNPTHY==1 , 1 , ifelse( a$PLASER==2

[R] how to create a new column with conditions

Hi, I have a data frame like this: > head(a) FID LASER2 CURRELIG PLASER RTNPTHY 1 fam1000_G1000 11 1 1 2 fam1001_G1001 11 1 1 3 fam1003_G1003 21 2 2 4 fam1005_G1005 11 1 2 5 fam1009_G1009