Commit 13e0bafa authored by Guolin Ke's avatar Guolin Ke
Browse files

fix documents.

parent 08f198a8
...@@ -10,8 +10,8 @@ Default values for the following parameters have changed: ...@@ -10,8 +10,8 @@ Default values for the following parameters have changed:
* min_data_in_leaf = 100 => 20 * min_data_in_leaf = 100 => 20
* min_sum_hessian_in_leaf = 10 => 1e-3 * min_sum_hessian_in_leaf = 10 => 1e-3
* num_leaves = 255 => 31 * num_leaves = 127 => 31
* num_iterations = 100 => 10 * num_iterations = 10 => 100
## Parameter format ## Parameter format
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...@@ -10,7 +10,7 @@ Follow the [Installation Guide](./Installation-Guide.md) to install LightGBM fir ...@@ -10,7 +10,7 @@ Follow the [Installation Guide](./Installation-Guide.md) to install LightGBM fir
## Training data format ## Training data format
LightGBM supports input data file with [CSV](https://en.wikipedia.org/wiki/Comma-separated_values), [TSV] (https://en.wikipedia.org/wiki/Tab-separated_values) and [LibSVM](https://www.csie.ntu.edu.tw/~cjlin/libsvm/) formats. LightGBM supports input data file with [CSV](https://en.wikipedia.org/wiki/Comma-separated_values), [TSV](https://en.wikipedia.org/wiki/Tab-separated_values) and [LibSVM](https://www.csie.ntu.edu.tw/~cjlin/libsvm/) formats.
Label is the data of first column, and there is no header in the file. Label is the data of first column, and there is no header in the file.
...@@ -57,11 +57,11 @@ Some important parameters: ...@@ -57,11 +57,11 @@ Some important parameters:
* ```valid```, default=```""```, type=multi-string, alias=```test```,```valid_data```,```test_data``` * ```valid```, default=```""```, type=multi-string, alias=```test```,```valid_data```,```test_data```
* validation/test data, LightGBM will output metrics for these data * validation/test data, LightGBM will output metrics for these data
* support multi validation data, separate by ```,``` * support multi validation data, separate by ```,```
* ```num_iterations```, default=```10```, type=int, alias=```num_iteration```,```num_tree```,```num_trees```,```num_round```,```num_rounds``` * ```num_iterations```, default=```100```, type=int, alias=```num_iteration```,```num_tree```,```num_trees```,```num_round```,```num_rounds```
* number of boosting iterations/trees * number of boosting iterations/trees
* ```learning_rate```, default=```0.1```, type=double, alias=```shrinkage_rate``` * ```learning_rate```, default=```0.1```, type=double, alias=```shrinkage_rate```
* shrinkage rate * shrinkage rate
* ```num_leaves```, default=```127```, type=int, alias=```num_leaf``` * ```num_leaves```, default=```31```, type=int, alias=```num_leaf```
* number of leaves in one tree * number of leaves in one tree
* ```tree_learner```, default=```serial```, type=enum, options=```serial```,```feature```,```data``` * ```tree_learner```, default=```serial```, type=enum, options=```serial```,```feature```,```data```
* ```serial```, single machine tree learner * ```serial```, single machine tree learner
...@@ -75,9 +75,9 @@ Some important parameters: ...@@ -75,9 +75,9 @@ Some important parameters:
* ```max_depth```, default=```-1```, type=int * ```max_depth```, default=```-1```, type=int
* Limit the max depth for tree model. This is used to deal with overfit when #data is small. Tree still grow by leaf-wise. * Limit the max depth for tree model. This is used to deal with overfit when #data is small. Tree still grow by leaf-wise.
* ```< 0``` means no limit * ```< 0``` means no limit
* ```min_data_in_leaf```, default=```100```, type=int, alias=```min_data_per_leaf``` , ```min_data``` * ```min_data_in_leaf```, default=```20```, type=int, alias=```min_data_per_leaf``` , ```min_data```
* Minimal number of data in one leaf. Can use this to deal with over-fit. * Minimal number of data in one leaf. Can use this to deal with over-fit.
* ```min_sum_hessian_in_leaf```, default=```10.0```, type=double, alias=```min_sum_hessian_per_leaf```, ```min_sum_hessian```, ```min_hessian``` * ```min_sum_hessian_in_leaf```, default=```1e-3```, type=double, alias=```min_sum_hessian_per_leaf```, ```min_sum_hessian```, ```min_hessian```
* Minimal sum hessian in one leaf. Like ```min_data_in_leaf```, can use this to deal with over-fit. * Minimal sum hessian in one leaf. Like ```min_data_in_leaf```, can use this to deal with over-fit.
For all parameters, please refer to [Parameters](./Parameters.md). For all parameters, please refer to [Parameters](./Parameters.md).
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