% fbanlcol.m
% usage: Y = fbanlcol(X,l,h,s) 
% Performs an s-stage DWT transform on the columns of X. (analysis filter bank)
% It is assumed that the filters l and h are smaller than #rows(X)/2^s
% and that 2^s divides #rows(X)

function Y=fbanlcol(X,l,h,s)
  [m,n] = size(X);
  Y = X;
  for  r = 0:1:(s-1)
     mr = m/2^(r);
     Y(1:mr,:) = hiloanlc(Y(1:mr,:),l,h);
     end;