Build tree with entropy numbers
stree = CalcStatTree(pkt,ent[,par])
packet table [wavelet or cosine packet] (n x L)
type of entropy to use: options are
-- Coifman-Wickerhauser
-- sum log(abs(th_i))
-- sum |th_i|^p, 0 < p < 2, p = par
-- #>= eps, eps = par
-- sum min(th_i^2,eps^2), eps=par
-- sum th_i
-- SURE(Thresholding), thresh = par
extra parameter, depends on type of entropy
stat tree of entropy numbers. tree(node(d,b)) contains entropy of packet(d,b,n)
A packet table is indexed by depth, block within depth, and coefficient within block. A stat tree summarizes the coefficients within a particular block at a given depth with an entropy measure based on the coefficients.