Hello, All!
How might one accomplish this using the by() function?
m1 is a data frame.
# populate column "m1$major_allele"
for ( i in 1:length(m1$major_allele)) {
if ( m1$Freq1[i] == m1$MAF[i]){
m1$major_allele[i] = m1$Al1[i]
}
else{
m1$major_allele[i] = m1$Al2[i]
}
}
Jim
[[alternative HTML version deleted]]
______________________________________________
R-help@r-project.org mailing list
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.
