CELLINDEX is the jCell module of jLab.

 CELLINDEX  Applies a cell array of indices to a cell array of column vectors.
    Y=CELLINDEX(X,INDEX) where X is a cell array of N column vectors, and
    INDEX is a cell array of indices into those vectors
        X{1}=X1, X{2}=X2,..., X{N}=XN
        INDEX{1}=I1, INDEX{2}=I2,..., INDEX{N}=IN
    applies INDEX to each element of X, returning Y defined by
       Y{1}=X1(I1), Y{2}=X2(I2),..., Y{N}=XN(IN).
    The output arrays YN are the same size as the indices IN. 
    Multiple input arguments
    [Y1,Y2,...,YM]=CELLINDEX(X1,X2,...,XM,INDEX) also works, with M 
    different cell arrays XM of identical size input, leading to M cell
    arrays YM all having the same size as INDEX.
    See also JCELL, VINDEX.
    Usage: y=cellindex(x,index);
    This is part of JLAB --- type 'help jlab' for more information
    (C) 2011--2014 J.M. Lilly --- type 'help jlab_license' for details

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