Transform amino acid variation data frame into counts table

aaVariationToCounts convert amino acid variation data frame into counts table.

aaVariationToCounts(aa_variation)

Arguments

aa_variation

Amino acid variation data frame as returned by hlaToAAVariation.

Value

Amino acid counts data frame. First column holds samples ID's, further columns, corresponding to specific amino acid positions, give information on the number of their occurrences in each sample.