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#6035 Add method for interpolating missing values (with extrapolation)

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This commit is contained in:
Kristian Bendiksen
2020-06-08 19:48:16 +02:00
parent 56753f688d
commit 3085fe22e8
3 changed files with 195 additions and 0 deletions
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50
ApplicationCode/UnitTests/RiaInterpolationTools-Test.cpp
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@@ -77,3 +77,53 @@ TEST( RiaInterpolationToolsTest, ValidIntervalValueTooHigh )
double res = RiaInterpolationTools::linear( x, y, 100.0 );
EXPECT_DOUBLE_EQ( std::numeric_limits<double>::infinity(), res );
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
TEST( RiaInterpolationToolsTest, InterpolateMisssingValuesStraightLine )
{
double inf = std::numeric_limits<double>::infinity();
std::vector<double> x = {0.0, 1.0, 2.0, 3.0, 4.0, 5.0};
std::vector<double> y = {0.0, 1.0, inf, inf, inf, 5.0};
RiaInterpolationTools::interpolateMissingValues( x, y );
EXPECT_DOUBLE_EQ( y[2], 2.0 );
EXPECT_DOUBLE_EQ( y[3], 3.0 );
EXPECT_DOUBLE_EQ( y[4], 4.0 );
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
TEST( RiaInterpolationToolsTest, InterpolateMissingValuesStraightLineExtrapolateStart )
{
double inf = std::numeric_limits<double>::infinity();
std::vector<double> x = {0.0, 1.0, 2.0, 3.0, 4.0, 5.0};
std::vector<double> y = {inf, inf, 2.0, inf, 4.0, 5.0};
RiaInterpolationTools::interpolateMissingValues( x, y );
EXPECT_DOUBLE_EQ( y[0], 0.0 );
EXPECT_DOUBLE_EQ( y[1], 1.0 );
EXPECT_DOUBLE_EQ( y[2], 2.0 );
EXPECT_DOUBLE_EQ( y[3], 3.0 );
EXPECT_DOUBLE_EQ( y[4], 4.0 );
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
TEST( RiaInterpolationToolsTest, InterpolateMissingValuesStraightLineExtrapolateEnd )
{
double inf = std::numeric_limits<double>::infinity();
std::vector<double> x = {0.0, 1.0, 2.0, 3.0, 4.0, 5.0};
std::vector<double> y = {0.0, inf, 2.0, inf, 4.0, inf};
RiaInterpolationTools::interpolateMissingValues( x, y );
EXPECT_DOUBLE_EQ( y[0], 0.0 );
EXPECT_DOUBLE_EQ( y[1], 1.0 );
EXPECT_DOUBLE_EQ( y[2], 2.0 );
EXPECT_DOUBLE_EQ( y[3], 3.0 );
EXPECT_DOUBLE_EQ( y[4], 4.0 );
EXPECT_DOUBLE_EQ( y[5], 5.0 );
}