public void Learn_xorOperation_SeeAssert(int iterations)
{
///Why does this sometimes fail? There are no bad examples.
string[] headers = new string[]
{
"bool1",
"bool2",
"xor"
};
double[] importance = new double[] {
0,
0,
0
};
Policy thePolicy = new Policy();
#region Training
Random rand = new Random();
for (int i = 0; i < iterations; i++)
{
bool bool1 = Convert.ToBoolean(rand.Next(0, 2));
bool bool2 = Convert.ToBoolean(rand.Next(0, 2));
object[] data = new object[] { bool1, bool2, (bool1 ^ bool2) };
DataVectorTraining dvt = new DataVectorTraining(headers, data, importance, "xor");
thePolicy.Learn(dvt);
}
#endregion
string htmlTree = thePolicy.ToDecisionTree(new DecisionTree.TreeSettings()
{
ShowSubScores = true, ShowBlanks = true
}).ToHtmlTree();
System.IO.File.WriteAllText("xor" + iterations + ".html", htmlTree);
#region Assert
var dataVectorTT = new DataVector(
new string[] { "bool1", "bool2" },
new object[] { true, true });
var dataVectorFF = new DataVector(
new string[] { "bool1", "bool2" },
new object[] { false, false });
var dataVectorTF = new DataVector(
new string[] { "bool1", "bool2" },
new object[] { true, false });
var dataVectorFT = new DataVector(
new string[] { "bool1", "bool2" },
new object[] { false, true });
Assert.False(Convert.ToBoolean(thePolicy.Classify_ByPolicy(dataVectorTT)));
Assert.False(Convert.ToBoolean(thePolicy.Classify_ByTree(dataVectorTT)));
Assert.False(Convert.ToBoolean(thePolicy.Classify_ByPolicy(dataVectorFF)));
Assert.False(Convert.ToBoolean(thePolicy.Classify_ByTree(dataVectorFF)));
Assert.True(Convert.ToBoolean(thePolicy.Classify_ByPolicy(dataVectorTF)));
Assert.True(Convert.ToBoolean(thePolicy.Classify_ByTree(dataVectorTF)));
Assert.True(Convert.ToBoolean(thePolicy.Classify_ByPolicy(dataVectorFT)));
Assert.True(Convert.ToBoolean(thePolicy.Classify_ByTree(dataVectorFT)));
#endregion
}