public void test_has_class_value_on_extendable()
{
TestingRow5[] rows = new[] {
new TestingRow5 {
CLASS = 1.0, ATT_1 = "1"
},
new TestingRow5 {
CLASS = 33.0, ATT_1 = "2"
},
new TestingRow5 {
CLASS = 22.0, ATT_1 = "3"
}
};
System.Collections.Generic.IEnumerable <ExtendableObj <TestingRow5> > extendable = rows.Select(r => ExtendableObj.Create(r).AddNominal("added", "yes"));
weka.core.Instances instances = new InstancesBuilder <ExtendableObj <TestingRow5> >(extendable.ToArray(), 0).Build();
Assert.AreEqual(4, instances.numAttributes());
Assert.AreEqual(3, instances.numInstances());
CollectionAssert.AreEqual(
new[] { 1.0, 33.0, 22.0 },
instances.GetAttrDoubles(0),
"Actual: " + string.Join(", ", instances.GetAttrDoubles(0)));
CollectionAssert.AreEqual(
new[] { "1", "2", "3" },
instances.GetAttrStrings(1),
"Actual: " + string.Join(", ", instances.GetAttrStrings(1)));
CollectionAssert.AreEqual(
new[] { "yes", "yes", "yes" },
instances.GetAttrStrings(2),
"Actual: " + string.Join(", ", instances.GetAttrStrings(2)));
}
public void test_goruping_then_binarizing()
{
TestingRow3[] rows = new[] {
new TestingRow3 {
ATT_1 = "1"
},
new TestingRow3 {
ATT_1 = "1"
},
new TestingRow3 {
ATT_1 = "1"
},
new TestingRow3 {
ATT_1 = "2"
},
new TestingRow3 {
ATT_1 = "3"
}
};
weka.core.Instances instances = new InstancesBuilder <TestingRow3>(rows, 0).Build();
Assert.AreEqual(4, instances.numAttributes());
Assert.AreEqual(5, instances.numInstances());
Assert.AreEqual("1", instances.instance(0).stringValue(1)); Assert.AreEqual("1", instances.instance(0).stringValue(2)); Assert.AreEqual("0", instances.instance(0).stringValue(3));
Assert.AreEqual("1", instances.instance(1).stringValue(1)); Assert.AreEqual("1", instances.instance(1).stringValue(2)); Assert.AreEqual("0", instances.instance(1).stringValue(3));
Assert.AreEqual("1", instances.instance(2).stringValue(1)); Assert.AreEqual("1", instances.instance(2).stringValue(2)); Assert.AreEqual("0", instances.instance(2).stringValue(3));
Assert.AreEqual("Others", instances.instance(3).stringValue(1)); Assert.AreEqual("0", instances.instance(3).stringValue(2)); Assert.AreEqual("1", instances.instance(3).stringValue(3));
Assert.AreEqual("Others", instances.instance(4).stringValue(1)); Assert.AreEqual("0", instances.instance(4).stringValue(2)); Assert.AreEqual("1", instances.instance(4).stringValue(3));
}
public void test_has_class_value_with_limited_training_set()
{
TestingRow5[] rows = new[] {
new TestingRow5 {
CLASS = 1.0, ATT_1 = "1"
},
new TestingRow5 {
CLASS = 33.0, ATT_1 = "2"
},
new TestingRow5 {
CLASS = 22.0, ATT_1 = "3"
},
new TestingRow5 {
CLASS = 33.0, ATT_1 = "4"
},
new TestingRow5 {
CLASS = 33.0, ATT_1 = "5"
},
new TestingRow5 {
CLASS = 11.0, ATT_1 = "2"
}
};
InstancesBuilder <TestingRow5> builder = new InstancesBuilder <TestingRow5>(rows, 0, 3);
weka.core.Instances instances = builder.Build();
Assert.AreEqual(3, instances.numAttributes());
Assert.AreEqual(6, instances.numInstances());
CollectionAssert.AreEqual(new[] { "1", "2", "3", "4", "5", "2" }, instances.GetAttrStrings(1));
CollectionAssert.AreEqual(new[] { "0", "1", "0", "0", "0", "1" }, instances.GetAttrStrings(2));
}
public void test_grouping_when_less_than_2()
{
TestingRow2[] rows = new[] {
new TestingRow2 {
ATT_1 = "1"
},
new TestingRow2 {
ATT_1 = "1"
},
new TestingRow2 {
ATT_1 = "1"
},
new TestingRow2 {
ATT_1 = "2"
},
new TestingRow2 {
ATT_1 = "3"
}
};
weka.core.Instances instances = new InstancesBuilder <TestingRow2>(rows, 0).Build();
Assert.AreEqual(3, instances.numAttributes());
Assert.AreEqual(5, instances.numInstances());
Assert.AreEqual("1", instances.instance(0).stringValue(1));
Assert.AreEqual("1", instances.instance(1).stringValue(1));
Assert.AreEqual("1", instances.instance(2).stringValue(1));
Assert.AreEqual("Others", instances.instance(3).stringValue(1));
Assert.AreEqual("Others", instances.instance(4).stringValue(1));
}
private Instances LoadRuntimeFromNonArffFile <T>(int classidx) where T : new ()
{
var rows = LoadRows <T>();
var instances = new InstancesBuilder <T>(rows, classidx).Build();
instances.setClassIndex(classidx);
return(instances);
}
internal PmlInstance BuildInstance <T>(T o) where T : new()
{
if (o == null)
{
throw new ArgumentNullException("o");
}
var instances = new InstancesBuilder <T>(new [] { o }, ClassIndex).Build();
return(new PmlInstance(instances.instance(0)));
}
public static Runtime LoadFromRows <T>(int classidx, IEnumerable <T> lines, int trainingsize = 0) where T : new()
{
if (classidx < 0)
{
throw new ArgumentOutOfRangeException("classidx: " + classidx + " is not valid");
}
var instances = new InstancesBuilder <T>(lines, classidx, trainingsize).Build();
instances.setClassIndex(classidx);
return(new Runtime(instances));
}
public static PmlInstance BuildInstance <T>(int classidx, T o) where T : new()
{
if (classidx < 0)
{
throw new ArgumentOutOfRangeException("classidx: " + classidx + " is not valid");
}
if (o == null)
{
throw new ArgumentNullException("o");
}
var instances = new InstancesBuilder <T>(new [] { o }, classidx).Build();
return(new PmlInstance(instances.instance(0)));
}
public void test_goruping_with_max_bins()
{
TestingRow4[] rows = new[] {
new TestingRow4 {
ATT_1 = "1"
},
new TestingRow4 {
ATT_1 = "1"
},
new TestingRow4 {
ATT_1 = "1"
},
new TestingRow4 {
ATT_1 = "2"
},
new TestingRow4 {
ATT_1 = "2"
},
new TestingRow4 {
ATT_1 = "3"
},
new TestingRow4 {
ATT_1 = "3"
},
new TestingRow4 {
ATT_1 = "4"
},
new TestingRow4 {
ATT_1 = "5"
}
};
weka.core.Instances instances = new InstancesBuilder <TestingRow4>(rows, 0).Build();
Assert.AreEqual(2, instances.numAttributes());
Assert.AreEqual(9, instances.numInstances());
Assert.AreEqual("1", instances.instance(0).stringValue(1));
Assert.AreEqual("1", instances.instance(1).stringValue(1));
Assert.AreEqual("1", instances.instance(2).stringValue(1));
Assert.AreEqual("2", instances.instance(3).stringValue(1));
Assert.AreEqual("2", instances.instance(4).stringValue(1));
Assert.AreEqual("3", instances.instance(5).stringValue(1));
Assert.AreEqual("3", instances.instance(6).stringValue(1));
Assert.AreEqual("Others", instances.instance(7).stringValue(1));
Assert.AreEqual("Others", instances.instance(8).stringValue(1));
}
public void test_binarisation_in_instances_builder()
{
TestingRow[] rows = new[] {
new TestingRow {
CLASS = 1, ATT_1 = 111, ATT_2 = 222, ATT_3 = 333, ATT_4 = 444, ATT_5 = 555, ATT_6 = 666, ATT_7 = 777, ATT_8 = 888
},
new TestingRow {
CLASS = 0, ATT_1 = 1112, ATT_2 = 2222, ATT_3 = 3332, ATT_4 = 4442, ATT_5 = 5552, ATT_6 = 6662, ATT_7 = 7772, ATT_8 = 8882
}
};
weka.core.Instances instances = new InstancesBuilder <TestingRow>(rows, 0).Build();
Assert.AreEqual(25, instances.numAttributes());
weka.core.Instance i1 = instances.instance(0);
weka.core.Instance i2 = instances.instance(1);
// These are the standard properties
Assert.AreEqual(1.0, i1.value(0)); Assert.AreEqual(1.0, i1.classValue());
Assert.AreEqual(0.0, i2.value(0)); Assert.AreEqual(0.0, i2.classValue());
Assert.AreEqual(0.0, i1.value(1)); Assert.AreEqual("111", i1.stringValue(1));
Assert.AreEqual(1.0, i2.value(1)); Assert.AreEqual("1112", i2.stringValue(1));
Assert.AreEqual(0.0, i1.value(2)); Assert.AreEqual("222", i1.stringValue(2));
Assert.AreEqual(1.0, i2.value(2)); Assert.AreEqual("2222", i2.stringValue(2));
Assert.AreEqual(0.0, i1.value(3)); Assert.AreEqual("333", i1.stringValue(3));
Assert.AreEqual(1.0, i2.value(3)); Assert.AreEqual("3332", i2.stringValue(3));
Assert.AreEqual(0.0, i1.value(4)); Assert.AreEqual("444", i1.stringValue(4));
Assert.AreEqual(1.0, i2.value(4)); Assert.AreEqual("4442", i2.stringValue(4));
Assert.AreEqual(0.0, i1.value(5)); Assert.AreEqual("555", i1.stringValue(5));
Assert.AreEqual(1.0, i2.value(5)); Assert.AreEqual("5552", i2.stringValue(5));
Assert.AreEqual(0.0, i1.value(6)); Assert.AreEqual("666", i1.stringValue(6));
Assert.AreEqual(1.0, i2.value(6)); Assert.AreEqual("6662", i2.stringValue(6));
Assert.AreEqual(0.0, i1.value(7)); Assert.AreEqual("777", i1.stringValue(7));
Assert.AreEqual(1.0, i2.value(7)); Assert.AreEqual("7772", i2.stringValue(7));
Assert.AreEqual(0.0, i1.value(8)); Assert.AreEqual("888", i1.stringValue(8));
Assert.AreEqual(1.0, i2.value(8)); Assert.AreEqual("8882", i2.stringValue(8));
// These are the new binarized
for (int i = 9; i < 25; i += 2)
{
Assert.AreEqual(1.0, i1.value(i)); Assert.AreEqual(0.0, i2.value(i));
Assert.AreEqual(0.0, i1.value(i + 1)); Assert.AreEqual(1.0, i2.value(i + 1));
}
}
// TODO: Finish implementation. Attributes have duplicate names at the
// moment and InstanceBuilder has no implementation.
[Test, Ignore("Not Implemented")] public void flatten_attribute()
{
var rows = new [] {
new FlattenClass {
CLASS = 0, Att1 = new [] { 1, 2, 3, 4, 5 }
},
new FlattenClass {
CLASS = 1, Att1 = new [] { 6, 7, 8, 9, 10 }
}
};
var builder = new InstancesBuilder <FlattenClass>(rows, 0);
var instances = builder.Build();
Assert.AreEqual(2, instances.numInstances());
Assert.AreEqual(6, instances.numAttributes());
CollectionAssert.AreEqual(new [] { "1", "2" }, instances.GetAttrStrings(1));
CollectionAssert.AreEqual(new [] { "1.2", "2.2" }, instances.GetAttrStrings(2));
}
[Test] public void test_ignore_attributes()
{
var rows = new [] {
new TestingRow6 {
CLASS = 1.0, ATT_1 = "1", ATT_2 = "1.1", ATT_3 = "1.2"
},
new TestingRow6 {
CLASS = 2.0, ATT_1 = "2", ATT_2 = "2.1", ATT_3 = "2.2"
}
};
var builder = new InstancesBuilder <TestingRow6>(rows, 0);
var instances = builder.Build();
Assert.AreEqual(3, instances.numAttributes()); // 1 is ignored
Assert.AreEqual(2, instances.numInstances());
CollectionAssert.AreEqual(new [] { "1", "2" }, instances.GetAttrStrings(1));
CollectionAssert.AreEqual(new [] { "1.2", "2.2" }, instances.GetAttrStrings(2));
}
public void flatten_attribute()
{
FlattenClass[] rows = new[] {
new FlattenClass {
CLASS = 0, Att1 = new [] { 1, 2, 3, 4, 5 }
},
new FlattenClass {
CLASS = 1, Att1 = new [] { 6, 7, 8, 9, 10 }
}
};
InstancesBuilder <FlattenClass> builder = new InstancesBuilder <FlattenClass>(rows, 0);
weka.core.Instances instances = builder.Build();
Assert.AreEqual(2, instances.numInstances());
Assert.AreEqual(6, instances.numAttributes());
CollectionAssert.AreEqual(new[] { "1", "2" }, instances.GetAttrStrings(1));
CollectionAssert.AreEqual(new[] { "1.2", "2.2" }, instances.GetAttrStrings(2));
}
public void test_has_class_value()
{
TestingRow5[] rows = new[] {
new TestingRow5 {
CLASS = 1.0, ATT_1 = "1"
},
new TestingRow5 {
CLASS = 33.0, ATT_1 = "2"
},
new TestingRow5 {
CLASS = 22.0, ATT_1 = "3"
}
};
weka.core.Instances instances = new InstancesBuilder <TestingRow5>(rows, 0).Build();
Assert.AreEqual(3, instances.numAttributes());
Assert.AreEqual(3, instances.numInstances());
CollectionAssert.AreEqual(new[] { "1", "2", "3" }, instances.GetAttrStrings(1));
CollectionAssert.AreEqual(new[] { "0", "1", "0" }, instances.GetAttrStrings(2));
}
[Test] public void test_grouping_when_less_than_3()
{
var rows = new [] {
new TestingRow2 {
ATT_2 = "1"
},
new TestingRow2 {
ATT_2 = "1"
},
new TestingRow2 {
ATT_2 = "1"
},
new TestingRow2 {
ATT_2 = "2"
},
new TestingRow2 {
ATT_2 = "2"
},
new TestingRow2 {
ATT_2 = "3"
},
new TestingRow2 {
ATT_2 = "3"
}
};
var instances = new InstancesBuilder <TestingRow2>(rows, 0).Build();
Assert.AreEqual(3, instances.numAttributes());
Assert.AreEqual(7, instances.numInstances());
Assert.AreEqual("1", instances.instance(0).stringValue(2));
Assert.AreEqual("1", instances.instance(1).stringValue(2));
Assert.AreEqual("1", instances.instance(2).stringValue(2));
Assert.AreEqual("Others", instances.instance(3).stringValue(2));
Assert.AreEqual("Others", instances.instance(4).stringValue(2));
Assert.AreEqual("Others", instances.instance(5).stringValue(2));
Assert.AreEqual("Others", instances.instance(6).stringValue(2));
}
[Test] public void test_has_class_value_is_remembered()
{
var rows = new [] {
new TestingRow5 {
CLASS = 1.0, ATT_1 = "1"
},
new TestingRow5 {
CLASS = 33.0, ATT_1 = "2"
},
new TestingRow5 {
CLASS = 22.0, ATT_1 = "3"
},
new TestingRow5 {
CLASS = 22.0, ATT_1 = "2"
}
};
var instances = new InstancesBuilder <TestingRow5>(rows, 0).Build();
Assert.AreEqual(3, instances.numAttributes());
Assert.AreEqual(4, instances.numInstances());
CollectionAssert.AreEqual(new [] { "1", "2", "3", "2" }, instances.GetAttrStrings(1));
CollectionAssert.AreEqual(new [] { "0", "1", "0", "1" }, instances.GetAttrStrings(2));
}
