Hello,

I am using EIGENSOFT's mergeit to merge several datasets. Since it only allows two datasets at the same time (as far as I am concerned), i am merging multiple times and cumulatively adding the datasets (i.e., ds1 + ds2 = ds12, then ds3 + ds12 = ds123, then ds4 + ds123 = ds1234, etc.).

At some point, I receive the error: fatalx: idnames too long, because each time the family name is added for every merge. Convertf has a way to ignore this (familynames = NO), but I tried this for mergeit and it does not work.

Is there a way to avoid this from happening?

My parameter files at the moment look like this (without the empty lines) :

geno1: ds1.bed

snp1: ds1.bim

ind1: ds1.fam

geno2: ds2.bed

snp2: ds2.bim

ind2: ds2.fam

outputformat: PACKEDPED

docheck: YES

hashcheck: YES

After mering several times, the idnames look likes this: 1300:1300:1300:1300:1150:idname1

If you have any tips for a bioinformatics beginner like me, that would be great! Thank you!