Multiple instances of '_' in sample ID.

[jasdeep kaur]

Hello chris,

After imputing genotype data  I want to make binary files from vcf files(imputed).

For that I used the following command

./plink --vcf chr2.vcf --make-bed --out new-chr2

and I got the error I have pasted below: 

Options in effect:

  --make-bed

  --out new-chr2

  --vcf chr2.vcf

7655 MB RAM detected; reserving 3827 MB for main workspace.

Error: Multiple instances of '_' in sample ID.

If you do not want '_' to be treated as a FID/IID delimiter, use --double-id or

--const-fid to choose a different method of converting VCF sample IDs to PLINK

IDs, or --id-delim to change the FID/IID delimiter.

I will be looking forward hearing from you

Thanks

Jasdeep