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SNP index definition

Which is the definition of SNP index? Someone asked me to calculate the SNP index, but I cannot find a definition.

sequencing next-gen alignment

You maybe could ask that 'someone' then? Not sure in which context this was asked, but SNP index doesn't ring a bell for me.

1 answer

If you mean how to make index for VCF. Try following :

bgzip -c file.vcf > file.vcf.gz
tabix -p vcf file.vcf.gz

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