139 lines
3.1 KiB
C++
139 lines
3.1 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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// Copyright 2025 Ryan Curtin (http://ratml.org)
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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_find_nonnan_1", "[find]")
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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 0.051408;\
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0.437242 0.058956 -0.149362 -0.045465 0.296153 0.035437;\
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-0.492474 -0.031309 0.314156 0.419733 0.068317 -0.454499;\
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0.336352 0.411541 0.458476 -0.393139 -0.135040 0.373833;\
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0.239585 -0.428913 -0.406953 -0.291020 -0.353768 0.258704;\
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";
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mat B = A;
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B( 6) = datum::nan;
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B( 8) = datum::inf;
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B(10) = -datum::inf;
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uvec indices1 = find_nonnan(A);
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uvec indices2 = find_nonnan(B);
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REQUIRE( indices1.n_elem == A.n_elem );
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REQUIRE( indices2.n_elem == B.n_elem - 1 );
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for (uword i = 0; i < A.n_elem; ++i)
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{
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REQUIRE( indices1[i] == i );
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}
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for (uword i = 0; i < B.n_elem - 1; ++i)
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{
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if (i < 6)
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{
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REQUIRE( indices2[i] == i );
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}
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else
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{
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REQUIRE( indices2[i] == i + 1 );
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}
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}
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}
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TEST_CASE("fn_find_nonnan_cube", "[find]")
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{
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cube A(5, 4, 3, fill::randu);
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A(1, 2, 1) = datum::nan;
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A(2, 3, 1) = datum::nan;
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A(3, 1, 1) = datum::inf;
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uvec indices = find_nonnan(A);
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REQUIRE( indices.n_elem == A.n_elem - 2 );
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for (uword i = 0; i < A.n_elem - 2; ++i)
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{
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if (i < (1 + (2 * 5) + (1 * 4 * 5)))
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{
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REQUIRE( indices[i] == i );
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}
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else if (i < ((2 + (3 * 5) + (1 * 4 * 5)) - 1))
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{
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REQUIRE( indices[i] == i + 1 );
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}
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else
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{
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REQUIRE( indices[i] == i + 2 );
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}
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}
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}
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TEST_CASE("fn_find_nonnan_spmat", "[find]")
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{
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// sparse matrices will only return nonzero non-nan indices
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sp_mat A(10, 10);
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A(3, 4) = 1.0;
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A(4, 5) = 1.0;
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A(5, 6) = datum::inf;
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A(6, 6) = datum::nan;
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A(6, 7) = datum::inf;
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A(8, 9) = 1.0;
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uvec indices = find_nonnan(A);
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REQUIRE( indices.n_elem == 5 );
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REQUIRE( indices[0] == 43 );
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REQUIRE( indices[1] == 54 );
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REQUIRE( indices[2] == 65 );
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REQUIRE( indices[3] == 76 );
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REQUIRE( indices[4] == 98 );
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}
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TEMPLATE_TEST_CASE("fn_find_nonnan_fp", "[find]", TEST_FLOAT_TYPES)
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{
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typedef TestType eT;
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Mat<eT> X(5, 1, fill::zeros);
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X[1] = Datum<eT>::nan;
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X[2] = Datum<eT>::inf;
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X[3] = -Datum<eT>::inf;
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uvec r = find_nonnan(X);
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REQUIRE( all( r == uvec({ 0, 2, 3, 4 }) ) );
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}
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