public Tree BuildTree()
{
if (InstancesAreSameClass || Instances.All(f => f.Features.Count() == 1))
{
return(LeafTreeForRemainingFeatures());
}
var best = Decider.SelectBestAxis(this);
return(SplitByAxis(best));
}
private Tree LeafTreeForRemainingFeatures()
{
if (InstancesAreSameClass)
{
return(GroupByClass());
}
if (Instances.All(f => f.Features.Count() == 1))
{
return(LeafForEachFeature());
}
return(null);
}