30 lines
597 B
Scilab
30 lines
597 B
Scilab
function [y]=reshapel(x,m,n)
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y=[];
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// Copyright (C) 2001 Michel Juillard
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//
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//RESHAPEL Change size.
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// RESHAPEL(X,M,N) returns the M-by-N matrix whose elements
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// are taken linewise from X. An error results if X does
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// not have M*N elements.
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[mm,nn] = size(x);
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if mm*nn~=m*n then
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error('Matrix must have M*N elements.');
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end
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%v = x';
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[%i,%i] = find(%v);%i=%i(:);%i=%i(:);
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%v = %v(:)
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if %i<>[] then s = %v(%i+size(%v,1)*(%i-1)) ;else s = [],end
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if size(i,2)~=1 then
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i = i';
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end
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k = (j-1)*nn+i;
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j = k-1-fix(k-1./n).*n+1;
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i = (k-j)/n+1;
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y = full(sparse([i(:),j(:)],s,[m,n]));
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return
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