File: cspy_test.m

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function cspy_test
%CSPY_TEST test cspy and cs_dmspy
% Example
%   cspy_test
% See also: testall

%   Copyright 2006-2007, Timothy A. Davis.
%   http://www.cise.ufl.edu/research/sparse

index = UFget ;

[ignore f] = sort (max (index.nrows, index.ncols)) ;

clf

% f = f (523:end) ;
% f = f ((find (f == 938)):end) ;

for i = f

    Prob = UFget (i,index) ;
    disp (Prob) ;
    A = Prob.A ;
    try
	subplot (1,4,1) ; cspy (A) ;
	drawnow
	subplot (1,4,2) ; cspy (A,64) ;
	drawnow
	subplot (1,4,3) ; cs_dmspy (A) ;
	drawnow
	subplot (1,4,4) ; cs_dmspy (A,0) ;
	drawnow
    catch
	fprintf ('failed...\n') ;
    end

    [m n] = size (A) ;
    if (m == n & nnz (diag (A)) == n)					    %#ok
	p = cs_dmperm (A) ;
	if (any (p ~= 1:n))
	    error ('!') ;
	end
	[p q r s cc rr] = cs_dmperm (A) ;				    %#ok
	if (any (p ~= q))
	    error ('not sym!') ;
	end
    end

    drawnow
end