Unpack the value for given basis from the stat tree
s = UnpackStatValue(btree,stree)
basis tree
stat tree
stat value
When using the BestBasis function, the stat value is both printed out and stored in the first entry of vtree when called via [btree,vtree] = BestBasis(stree,D)
It may be interesting to examine the stat value for a basis other than the ``best'' chosen by the Coifman-Wickerhauser algorithm, e.g. for a basis constructed by MakeBasis.