function test14
%TEST14 test cs_droptol
%
% Example:
%   test14
% See also: testall

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


rand ('state', 0) ;

for trial = 1:100
    m = fix (100 * rand (1)) ;
    n = fix (100 * rand (1)) ;
    d = 0.1*rand (1) ;
    A = sprandn (m,n,d) ;
    [i j x] = find (A) ;
    A = sparse (i,j,2*x-1) ;
    fprintf ('test14 m %3d n %3d nz %d\n', m, n, nnz (A)) ;

    % using CSparse
    tol = 0.5 ;
    B = cs_droptol (A, tol) ;

    % using MATLAB
    A = A .* (abs (A) > tol) ;
%    [m n] = size (A) ;
%    s = abs (A) > tol ;
%    [i j] = find (s) ;
%    x = A (find (s)) ;
%    A = sparse (i, j, x, m, n) ;

    if (norm (A-B,1) > 0)
	error ('!') ;
    end
end