samer@3: % window - Window a sequnce of arrays in a given dimension
samer@3: %
samer@3: % window :: seq [[N,M]] -> seq [[N]].
samer@3: % window :: seq [[N,M]], L:natural -> seq [[N,L]].
samer@3: % window :: seq [[N,M]], L:natural, natural ~'hop size' -> seq [[N,L]].
samer@3: %
samer@3: % This is just short for windowdata(...)
samer@3: % Possible optimisation:
samer@3: %    when the span and hop are much less than the input buffer size
samer@3: %    and the source data does not have an efficient extract method,
samer@3: %    then it is worth caching the source data, ie window(cache(x),...) 
samer@3: function Y=window(X,varargin), Y=seq.window(X,varargin{:});