The feature calculates the covariance between different residues separated along the protein sequences
by a lag value across different amino acid emission frequency columns.
Usage
hmm_cc(hmm, lg = 4)
Value
A vector of length 20 x 19 x the lag value; by default this is a vector of length 1520.
Arguments
hmm
The name of a profile hidden markov model file.
lg
The lag value, which indicates the distance between residues.
References
Dong, Q., Zhou, S., & Guan, J. (2009).
A new taxonomy-based protein fold recognition approach based on autocross-covariance transformation.
Bioinformatics, 25(20), 2655–2662.