void TestSelectWorkout()
{
var data = new[] { new TestClass()
{
A = 1, B = 2, C = 3,
}, new TestClass()
{
A = 4, B = 5, C = 6
} };
var invalidData = new [] { new TestClass2 {
D = 3, E = 5
} };
using (var env = new ConsoleEnvironment())
{
var dataView = ComponentCreation.CreateDataView(env, data);
var invalidDataView = ComponentCreation.CreateDataView(env, invalidData);
// Workout on keep columns
var est = new SelectColumnsEstimator(env, new[] { "A", "B" }, null, true, false);
TestEstimatorCore(est, validFitInput: dataView, invalidInput: invalidDataView);
// Workout on drop columns
est = new SelectColumnsEstimator(env, null, new[] { "A", "B" }, true, false);
TestEstimatorCore(est, validFitInput: dataView, invalidInput: invalidDataView);
// Workout on keep columns with ignore mismatch -- using invalid data set
est = new SelectColumnsEstimator(env, null, new[] { "A", "B" }, true);
TestEstimatorCore(est, validFitInput: invalidDataView);
}
}
void TestSelect()
{
var data = new[] { new TestClass()
{
A = 1, B = 2, C = 3,
}, new TestClass()
{
A = 4, B = 5, C = 6
} };
using (var env = new ConsoleEnvironment())
{
var dataView = ComponentCreation.CreateDataView(env, data);
var est = new SelectColumnsEstimator(env, "A", "C");
var transformer = est.Fit(dataView);
var result = transformer.Transform(dataView);
var foundColumnA = result.Schema.TryGetColumnIndex("A", out int aIdx);
var foundColumnB = result.Schema.TryGetColumnIndex("B", out int bIdx);
var foundColumnC = result.Schema.TryGetColumnIndex("C", out int cIdx);
Assert.True(foundColumnA);
Assert.Equal(0, aIdx);
Assert.False(foundColumnB);
Assert.Equal(0, bIdx);
Assert.True(foundColumnC);
Assert.Equal(1, cIdx);
}
}
