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* add qid for https://github.com/dmlc/xgboost/issues/2748 * change names * change spaces * change qid to bst_uint type * change qid type to size_t * change qid first to SIZE_MAX * change qid type from size_t to uint64_t * update dmlc-core * fix qids name error * fix group_ptr_ error * Style fix * Add qid handling logic to SparsePage * New MetaInfo format + backward compatibility fix Old MetaInfo format (1.0) doesn't contain qid field. We still want to be able to read from MetaInfo files saved in old format. Also, define a new format (2.0) that contains the qid field. This way, we can distinguish files that contain qid and those that do not. * Update MetaInfo test * Simply group assignment logic * Explicitly set qid=nullptr in NativeDataIter NativeDataIter's callback does not support qid field. Users of NativeDataIter will need to call setGroup() function separately to set group information. * Save qids_ in SaveBinary() * Upgrade dmlc-core submodule * Add a test for reading qid * Add contributor * Check the size of qids_ * Document qid format
19 lines
488 B
Markdown
19 lines
488 B
Markdown
# XGBoost How To
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This page contains guidelines to use and develop XGBoost.
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## Installation
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- [How to Install XGBoost](../build.md)
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## Use XGBoost in Specific Ways
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- [Text input format](../input_format.md)
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- [Parameter tuning guide](param_tuning.md)
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- [Use out of core computation for large dataset](external_memory.md)
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- [Use XGBoost GPU algorithms](../gpu/index.md)
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## Develop and Hack XGBoost
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- [Contribute to XGBoost](contribute.md)
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## Frequently Ask Questions
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- [FAQ](../faq.md)
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