85 lines
2.6 KiB
C
85 lines
2.6 KiB
C
#ifndef XGBOOST_PYTHON_H
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#define XGBOOST_PYTHON_H
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/*!
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* \file xgboost_regrank_data.h
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* \brief python wrapper for xgboost, using ctypes,
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* hides everything behind functions
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* use c style interface
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*/
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#include "../booster/xgboost_data.h"
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extern "C"{
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/*! \brief type of row entry */
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typedef xgboost::booster::FMatrixS::REntry XGEntry;
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/*!
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* \brief create a data matrix
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* \return a new data matrix
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*/
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void* XGDMatrixCreate(void);
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/*!
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* \brief free space in data matrix
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*/
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void XGDMatrixFree(void *handle);
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/*!
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* \brief load a data matrix from text file or buffer(if exists)
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* \param handle a instance of data matrix
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* \param fname file name
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* \param silent print statistics when loading
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*/
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void XGDMatrixLoad(void *handle, const char *fname, int silent);
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/*!
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* \brief load a data matrix into binary file
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* \param handle a instance of data matrix
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* \param fname file name
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* \param silent print statistics when saving
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*/
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void XGDMatrixSaveBinary(void *handle, const char *fname, int silent);
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/*!
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* \brief set matrix content from csr format
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* \param handle a instance of data matrix
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* \param indptr pointer to row headers
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* \param indices findex
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* \param data fvalue
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* \param nindptr number of rows in the matix + 1
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* \param nelem number of nonzero elements in the matrix
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*/
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void XGDMatrixParseCSR( void *handle,
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const size_t *indptr,
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const unsigned *indices,
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const float *data,
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size_t nindptr,
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size_t nelem );
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/*!
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* \brief set label of the training matrix
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* \param handle a instance of data matrix
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* \param data array of row content
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* \param len length of array
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*/
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void XGDMatrixSetLabel( void *handle, const float *label, size_t len );
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/*!
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* \brief get label set from matrix
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* \param handle a instance of data matrix
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* \param len used to set result length
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*/
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const float* XGDMatrixGetLabel( const void *handle, size_t* len );
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/*!
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* \brief add row
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* \param handle a instance of data matrix
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* \param data array of row content
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* \param len length of array
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*/
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void XGDMatrixAddRow(void *handle, const XGEntry *data, size_t len);
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/*!
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* \brief create a booster
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*/
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void* XGBoostCreate(void);
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/*!
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* \brief create a booster
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*/
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void* XGBoost(void);
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};
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#endif
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