83a66b4994
* Extract partitioner from hist. * Implement categorical data support by passing the gradient index directly into the partitioner. * Organize/update document. * Remove code for negative hessian.
22 lines
690 B
C++
22 lines
690 B
C++
/*!
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* Copyright 2021-2022, XGBoost contributors.
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*/
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#include <xgboost/tree_model.h>
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#include <vector>
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#include "../../../src/tree/hist/expand_entry.h"
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namespace xgboost {
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namespace tree {
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inline void GetSplit(RegTree *tree, float split_value, std::vector<CPUExpandEntry> *candidates) {
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tree->ExpandNode(
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/*nid=*/RegTree::kRoot, /*split_index=*/0, /*split_value=*/split_value,
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/*default_left=*/true, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f,
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/*left_sum=*/0.0f,
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/*right_sum=*/0.0f);
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candidates->front().split.split_value = split_value;
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candidates->front().split.sindex = 0;
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candidates->front().split.sindex |= (1U << 31);
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}
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} // namespace tree
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} // namespace xgboost
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