sample_lgbm.json

{
	"comment": "THIS DATA IS MOSTLY MADE UP.  It's just here to show structure, the leaf nodes don't actually make sense, which is why the gains jump and there is only a few nodes on 1 tree.  Also this comment field doesn't actually exist in the real data but you can't have comments in JSON",
    "name": "tree",
    "version": "v3",
    "num_class": 1,
    "num_tree_per_iteration": 1,
    "label_index": 0,
    "max_feature_idx": 86,
    "average_output": false,
    "objective": "regression",
    "feature_names": [
        "Column_0",
        "Column_1",
        "..."
    ],
  	"monotone_constraints": [],
  	"tree_info": [
		{
			"tree_index": 0,
			"num_leaves": 128,
			"num_cat": 0,
			"shrinkage": 0.15,
			"tree_structure": {
				"split_index": 0,
				"split_feature": 0,
				"split_gain": 5796.2001953125,
				"threshold": 1.0000000180025095e-35,
				"decision_type": "<=",
				"default_left": true,
				"missing_type": "None",
				"internal_value": 0,
				"internal_weight": 0,
				"internal_count": 756271,
				"left_child": {
					"split_index": 1,
					"split_feature": 70,
					"split_gain": 7108.22998046875,
					"threshold": 1.0000000180025095e-35,
					"decision_type": "<=",
					"default_left": true,
					"missing_type": "None",
					"internal_value": 0.0875516,
					"internal_weight": 377903,
					"internal_count": 377903,
					"left_child": {
					  "leaf_index": 0,
					  "leaf_value": 0.019435662238625723,
					  "leaf_weight": 73697,
					  "leaf_count": 73697
					},
					"right_child": {
					  "leaf_index": 83,
					  "leaf_value": 0.05490100616682895,
					  "leaf_weight": 9243,
					  "leaf_count": 9243
					}
				},
				"right_child": {
					"split_index": 1,
					"split_feature": 70,
					"split_gain": 7108.22998046875,
					"threshold": 1.0000000180025095e-35,
					"decision_type": "<=",
					"default_left": true,
					"missing_type": "None",
					"internal_value": 0.0875516,
					"internal_weight": 377903,
					"internal_count": 377903,
					"left_child": {
					  "leaf_index": 0,
					  "leaf_value": 0.019435662238625723,
					  "leaf_weight": 73697,
					  "leaf_count": 73697
					},
					"right_child": {
					  "leaf_index": 83,
					  "leaf_value": 0.05490100616682895,
					  "leaf_weight": 9243,
					  "leaf_count": 9243
					}
				}
			}
        }
    ],
    "pandas_categorical": null
}