CARTreeNodeData.h

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/*
 * Copyright (c) The Shogun Machine Learning Toolbox
 * Written (w) 2014 Parijat Mazumdar
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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 */


#ifndef CARTREENODEDATA_H__
#define CARTREENODEDATA_H__

#include <shogun/lib/config.h>

namespace shogun
{
struct CARTreeNodeData
{
    int32_t attribute_id;

    SGVector<float64_t> transit_into_values;

    float64_t node_label;

    float64_t total_weight;

    float64_t weight_minus_node;

    float64_t weight_minus_branch;

    int32_t num_leaves;

    CARTreeNodeData()
    {
        attribute_id=-1;
        transit_into_values=SGVector<float64_t>();
        node_label=-1.0;
        total_weight=0.;
        weight_minus_node=0.;
        weight_minus_branch=0.;
        num_leaves=0;
    }

    static void print_data(const CARTreeNodeData &data)
    {
        SG_SPRINT("classifying feature index=%d\n", data.attribute_id);
        data.transit_into_values.display_vector(data.transit_into_values.vector,data.transit_into_values.vlen, "transit values");
        SG_SPRINT("total weight=%f\n", data.total_weight);
        SG_SPRINT("errored weight of node=%f\n", data.weight_minus_node);
        SG_SPRINT("errored weight of subtree=%f\n", data.weight_minus_branch);
        SG_SPRINT("number of leaves in subtree=%d\n", data.num_leaves);
    }
};


} /* shogun */

#endif /* CARTREENODEDATA_H__ */