public void TestSparseFeature()
{
var builder = new FeatureCTFBuilder();
builder.AddSparseFeature("sparse");
builder.StartNewSparseSample();
builder.AddSparseValue(123, 9);
builder.AddSparseValue(124, 99);
builder.AddSparseValue(125, 999);
builder.StartNewSparseSample();
builder.AddSparseValue(0, 1);
builder.AddSparseValue(1, 2);
var writer = new StringWriter();
builder.Write(writer);
var s = writer.ToString();
var expected =
"0\t|sparse 123:9 124:99 125:999\r\n" +
"1\t|sparse 0:1 1:2";
Assert.AreEqual(expected, s);
}
public void TestDenseFeature()
{
var builder = new FeatureCTFBuilder();
builder.AddDenseFeature("by_sequence", new float[] { 1, 2, 3, 4, 5, 6, 7 }, 3);
builder.AddDenseFeature("by_array_of_array", new float[][] {
new float[] { 1, 2 }, new float[] { 3, 4, 5 }, new float[] { 6, 7, 8, 9 }
});
builder.AddDenseFeature("step_by_step");
builder.AddDenseSample(new float[] { 10, 20, 30 });
builder.AddDenseSample(new float[] { 40, 50, 60 });
var writer = new StringWriter();
builder.Write(writer);
var s = writer.ToString();
var expected =
"0\t|by_sequence 1 2 3\t|by_array_of_array 1 2\t|step_by_step 10 20 30\r\n" +
"1\t|by_sequence 4 5 6\t|by_array_of_array 3 4 5\t|step_by_step 40 50 60\r\n" +
"2\t|by_sequence 7\t|by_array_of_array 6 7 8 9";
Assert.AreEqual(expected, s);
}
public void TestComment()
{
var builder = new FeatureCTFBuilder();
builder.AddComment(new string[] { "hello", "world", "!" });
builder.AddDenseFeature("dense", new float[] { 1, 2, 3 }, 1);
var writer = new StringWriter();
builder.Write(writer);
var s = writer.ToString();
var expected =
"0\t|# hello\t|dense 1\r\n" +
"1\t|# world\t|dense 2\r\n" +
"2\t|# !\t|dense 3";
Assert.AreEqual(expected, s);
}
public void TestOneHotFeature()
{
var builder = new FeatureCTFBuilder();
builder.AddOneHotFeature("onehot", new int[] { 0, 1, 2, 3 }, 5);
var writer = new StringWriter();
builder.Write(writer);
var s = writer.ToString();
var expected =
"0\t|onehot 1 0 0 0 0\r\n" +
"1\t|onehot 0 1 0 0 0\r\n" +
"2\t|onehot 0 0 1 0 0\r\n" +
"3\t|onehot 0 0 0 1 0";
Assert.AreEqual(expected, s);
}