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Remove public access to tree model param. (#8902)

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* Make tree model param a private member.
* Number of features and targets are immutable after construction.

This is to reduce the number of places where we can run configuration.
This commit is contained in:
Jiaming Yuan
2023-03-13 20:55:10 +08:00
committed by GitHub
parent 5ba3509dd3
commit 9bade7203a
14 changed files with 149 additions and 159 deletions
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17
tests/cpp/tree/test_multi_target_tree_model.cc
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@@ -17,8 +17,8 @@ TEST(MultiTargetTree, JsonIO) {
linalg::Vector<float> right_weight{{3.0f, 4.0f, 5.0f}, {3ul}, Context::kCpuId};
tree.ExpandNode(RegTree::kRoot, /*split_idx=*/1, 0.5f, true, base_weight.HostView(),
left_weight.HostView(), right_weight.HostView());
ASSERT_EQ(tree.param.num_nodes, 3);
ASSERT_EQ(tree.param.size_leaf_vector, 3);
ASSERT_EQ(tree.NumNodes(), 3);
ASSERT_EQ(tree.NumTargets(), 3);
ASSERT_EQ(tree.GetMultiTargetTree()->Size(), 3);
ASSERT_EQ(tree.Size(), 3);
@@ -26,20 +26,19 @@ TEST(MultiTargetTree, JsonIO) {
tree.SaveModel(&jtree);
auto check_jtree = [](Json jtree, RegTree const& tree) {
ASSERT_EQ(get<String const>(jtree["tree_param"]["num_nodes"]),
std::to_string(tree.param.num_nodes));
ASSERT_EQ(get<String const>(jtree["tree_param"]["num_nodes"]), std::to_string(tree.NumNodes()));
ASSERT_EQ(get<F32Array const>(jtree["base_weights"]).size(),
tree.param.num_nodes * tree.param.size_leaf_vector);
ASSERT_EQ(get<I32Array const>(jtree["parents"]).size(), tree.param.num_nodes);
ASSERT_EQ(get<I32Array const>(jtree["left_children"]).size(), tree.param.num_nodes);
ASSERT_EQ(get<I32Array const>(jtree["right_children"]).size(), tree.param.num_nodes);
tree.NumNodes() * tree.NumTargets());
ASSERT_EQ(get<I32Array const>(jtree["parents"]).size(), tree.NumNodes());
ASSERT_EQ(get<I32Array const>(jtree["left_children"]).size(), tree.NumNodes());
ASSERT_EQ(get<I32Array const>(jtree["right_children"]).size(), tree.NumNodes());
};
check_jtree(jtree, tree);
RegTree loaded;
loaded.LoadModel(jtree);
ASSERT_TRUE(loaded.IsMultiTarget());
ASSERT_EQ(loaded.param.num_nodes, 3);
ASSERT_EQ(loaded.NumNodes(), 3);
Json jtree1{Object{}};
loaded.SaveModel(&jtree1);