The AC variable measures the correlation of the same property between two residues separated by a distance of lg along the sequence
pssm_ac(pssm_name, lg = 10)
name of the PSSM Matrix file
a parameter which indicates distance between two residues
feature vector which its length depends on parameter lg. by default lg is 10 hence feature vector would be of length 200.
in use of this function The lg parameter must be less than the length of the smallest sequence in the database.
Dong, Q., Zhou, S. and Guan, J. (2009) A new taxonomy-based protein fold recognition approach based on autocross-covariance transformation, Bioinformatics, 25, 2655-2662.
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