I have received three plink files: *bed, *bim, and *fam, from which I need to extract two columns of data in a human readable form. The files contain some information on patients' genotypes and survival times.
I have managed to extract the genotype information by creating a *ped file (under plink 1.07-3 in Debian, Linux):
p-link --bfile mar2 --recode --tab --out outfile
The resulting file contains the following columns (each row is a patient):
family_ID sample_ID paternal_ID maternal_ID sex affection genotype
But there is no information on patients' survival times. Does anybody know how to extract them?
I don't know neither its column name, nor the way this information is encoded in the binaries. Probably I need to list all column names first and guess which one is the right one, but I don't know how to do it. Or maybe there exist some standard way to encode survival times in plink?
I would be grateful for a detailed instruction, as I am not a regular plink user (and don't really want to be - I just need these two columns of data).
Thanks for help.