public string GetModificationClassification(HashSet <string> labelModificationSet)
{
PeptideModificationState trueMods = GetTrueModifications(labelModificationSet);
ushort[] x = trueMods.GetModifications();
int index = -1;
int count = 0;
for (int i = 0; i < x.Length; i++)
{
if (x[i] != ushort.MaxValue)
{
count++;
index = i;
}
}
if (count == 0)
{
return("unmodified");
}
if (count > 1)
{
return("multiple");
}
return("" + x[index] + ";" + sequence[index]);
}