Generate a PAM matrix pam pam seqlab pam perl "pam" 0 scale Scale 0. < scale <= 1000 (-s) perl ($value)? " -s $value" : "" 1 An optional floating-point scale for the log-odds matrix in the range 0 < scale <= 1000 0 < scale <= 1000 perl (defined $scale) && ($value <=0 || $value > 1000) x Substitution value for X with any other letter (-x) perl ($value)? " -x $value" : "" 2 distance PAM distance (from 2 to 511) perl ($value)? " $value" : "" 3 2 <= pam distance <= 511 perl $value < 2 || $value > 511