SNP-gene matrix construction

Question

[bioinfo456]

What is the easiest way to build an SNP-gene matrix, with rows corresponding to SNPs and columns corresponding to genes regulated by the SNP? Any insight would be much appreciated.

[Bastien Hervé]

R ? https://cran.r-project.org/web/packages/seqminer/index.html

Python ?

C: parsing vcf file