void generateRandomSparseMatrix(size_t N, size_t M, size_t nEntries, CSparseMatrix &MAT)
{
MAT.clear();
MAT.setRowCount(N);
MAT.setColCount(M);
for (size_t i=0;i<nEntries;i++)
{
MAT.insert_entry(
mrpt::random::randomGenerator.drawUniform32bit() % N,
mrpt::random::randomGenerator.drawUniform32bit() % M,
mrpt::random::randomGenerator.drawGaussian1D(0,1) );
}
// Return already compressed:
MAT.compressFromTriplet();
}
TEST(SparseMatrix, InitFromTriplet)
{
CSparseMatrix SM;
CMatrixDouble D(10,20);
SM.insert_entry(2,2, 4.0); D(2,2) = 4.0;
SM.insert_entry(6,8, -2.0); D(6,8) = -2.0;
SM.setRowCount(10);
SM.setColCount(20);
CMatrixDouble dense_out1;
SM.get_dense(dense_out1);
SM.compressFromTriplet();
CMatrixDouble dense_out2;
SM.get_dense(dense_out2);
EXPECT_TRUE(dense_out1==dense_out2);
}