common.seg and inherits all its arguments.
common.null.stat(mat, p.seq, B, q, lam, f, scales, mby, tby, do.parallel)scales in factor.seg.alg
dmby in func_dc_by
dtby in func_dc_by
do.parallel in factor.seg.alg
B values approximating the test statistics under the stationarity
over the segments of consideration in the binary tree (defined by the nodes contained in mat).