93 lines
2.2 KiB
C++
93 lines
2.2 KiB
C++
// SPDX-License-Identifier: Apache-2.0
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//
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// Copyright 2015 Conrad Sanderson (http://conradsanderson.id.au)
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// Copyright 2015 National ICT Australia (NICTA)
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// ------------------------------------------------------------------------
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#include <armadillo>
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#include "catch.hpp"
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#include "utils.hpp"
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using namespace arma;
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TEST_CASE("fn_diagvec_1", "[diagvec]")
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{
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mat A =
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"\
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0.061198 0.201990 0.019678 -0.493936 -0.126745;\
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0.437242 0.058956 -0.149362 -0.045465 0.296153;\
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-0.492474 -0.031309 0.314156 0.419733 0.068317;\
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0.336352 0.411541 0.458476 -0.393139 -0.135040;\
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0.239585 -0.428913 -0.406953 -0.291020 -0.353768;\
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";
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vec A_main1 = diagvec(A);
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vec A_main2 = diagvec(A,0);
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vec A_p1 = diagvec(A, 1);
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vec A_m1 = diagvec(A,-1);
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vec a =
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{
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0.061198,
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0.058956,
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0.314156,
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-0.393139,
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-0.353768
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};
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vec b =
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{
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0.20199,
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-0.14936,
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0.41973,
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-0.13504
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};
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vec c =
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{
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0.437242,
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-0.031309,
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0.458476,
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-0.291020
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};
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REQUIRE( accu(abs(A_main1 - a)) == Approx(0.0).margin(0.001) );
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REQUIRE( accu(abs(A_main2 - a)) == Approx(0.0).margin(0.001) );
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REQUIRE( accu(abs(A_p1 - b)) == Approx(0.0).margin(0.001) );
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REQUIRE( accu(abs(A_m1 - c)) == Approx(0.0).margin(0.001) );
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}
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TEMPLATE_TEST_CASE("diagvec_fp_randu", "[diagvec]", TEST_FLOAT_TYPES)
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{
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typedef TestType eT;
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Mat<eT> x = randu<Mat<eT>>(30, 30);
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Col<eT> y1 = diagvec(x);
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Row<eT> y2 = diagvec(x).t();
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REQUIRE( y1.n_elem == x.n_rows );
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REQUIRE( y2.n_elem == x.n_rows );
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for (uword i = 0; i < x.n_rows; ++i)
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{
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REQUIRE( eT(y1[i]) == Approx(eT(x(i, i))) );
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}
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}
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