MicrobialForensics A likelihood ratio-based approach for improved source attribution in microbial forensics data processing extract variants from vcf file extract_variants_from_vcf_file.pl all_data.positions.snp.vcf > data_matrix_snp.txt calculate pairwise Euclidean disance between samples calc_eucledian_dist.pl data_matrix_snp.txt > dist_snp.txt plots