54 lines
1.9 KiB
C++
54 lines
1.9 KiB
C++
// 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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using namespace arma;
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TEST_CASE("fn_interp1_1")
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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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vec x = vectorise(A(0,0,size(5,3)));
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vec y = vectorise(A(0,3,size(5,3)));
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vec xi_a = linspace<vec>( x.min(), x.max(), 10 );
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vec xi_b = flipud( linspace<vec>( x.min(), x.max(), 11 ) );
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vec yi_a;
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vec yi_b;
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interp1(x, y, xi_a, yi_a);
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interp1(x, y, xi_b, yi_b);
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vec yi_a_gt = { 0.419733, 0.241248, 0.149666, 0.058084, 0.057588, 0.152062, -0.284524, -0.307613, -0.336627, 0.373833 };
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vec yi_b_gt = { 0.373833, -0.300357, -0.353940, -0.201854, -0.449865, 0.063571, 0.045817, 0.085559, 0.167982, 0.250406, 0.419733 };
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REQUIRE( accu(abs( yi_a - yi_a_gt )) == Approx(0.0) );
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REQUIRE( accu(abs( yi_b - yi_b_gt )) == Approx(0.0) );
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// REQUIRE_THROWS( );
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}
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