Classes and functions relating to pathway weighting for Ka/Ks
[Classes related to the calculation of Ka and Ks]

Classes
class	Sequence::GranthamWeights2
	Weights paths by Grantham's distances for codons differing at 2 sites. More...
class	Sequence::GranthamWeights3
	Weights paths by Grantham's distances for codons differing at 3 sites. More...
class	Sequence::Unweighted2
	weights all pathways equally More...
class	Sequence::Unweighted3
	weights all pathways equally More...
class	Sequence::WeightingScheme2
	abstract interface to weighting schemes when codons differ at 2 positions More...
class	Sequence::WeightingScheme3
	abstract interface to weighting schemes when codons differ at 3 positions More...