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// Copyright (C) 2015 - IIT Bombay - FOSSEE
//
// Author: Harpreet Singh
// Organization: FOSSEE, IIT Bombay
// Email: harpreet.mertia@gmail.com
//
// This file must be used under the terms of the CeCILL.
// This source file is licensed as described in the file COPYING, which
// you should have received as part of this distribution. The terms
// are also available at
// http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
// <-- JVM NOT MANDATORY -->
// <-- ENGLISH IMPOSED -->
//
// assert_close --
// Returns 1 if the two real matrices computed and expected are close,
// i.e. if the relative distance between computed and expected is lesser than epsilon.
// Arguments
// computed, expected : the two matrices to compare
// epsilon : a small number
//
function flag = assert_close ( computed, expected, epsilon )
if expected==0.0 then
shift = norm(computed-expected);
else
shift = norm(computed-expected)/norm(expected);
end
// if shift < epsilon then
// flag = 1;
// else
// flag = 0;
// end
// if flag <> 1 then pause,end
flag = assert_checktrue ( shift < epsilon );
endfunction
//
// assert_equal --
// Returns 1 if the two real matrices computed and expected are equal.
// Arguments
// computed, expected : the two matrices to compare
// epsilon : a small number
//
//function flag = assert_equal ( computed , expected )
// if computed==expected then
// flag = 1;
// else
// flag = 0;
// end
// if flag <> 1 then pause,end
//endfunction
// A basic lsqnonneg problem
C = [
0.0372 0.2869
0.6861 0.7071
0.6233 0.6245
0.6344 0.6170];
d = [
0.8587
0.1781
0.0747
0.8405];
[xopt,resnorm,residual,exitflag,output,lambda] = lsqnonneg(C,d)
assert_close ( xopt , [ 0 0.6929344 ]' , 0.0005 );
assert_close ( residual , [0.6598971 -0.3118739 -0.3580375 0.4129595]' , 0.0005 );
assert_close ( resnorm , [ 0.8314560] , 0.0005 );
assert_checkequal( exitflag , int32(0) );
printf("Test Successful");
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