Creates a string with the information for a single SNP. The information is coded as R,A:DP. R is the number of reads of the reference allele, A is the number of reads of the alternative allele and DP is the total depth of coverage.
strg2vcf(reference, alternative, total)
a character string coded as R,A:DP.
an integer representing the number of reads with the reference allele
an integer representing the number of reads with the alternative allele
an integer representing the total number of reads observed at this SNP.