matlab xgboost安装调试

/** * Copyright 2015~2023 by XGBoost Contributors * \file c_api.h * \author Tianqi Chen * \brief C API of XGBoost, used for interfacing to other languages. */ #ifndef XGBOOST_C_API_H_ #define XGBOOST_C_API_H_ #ifdef __cplusplus #define XGB_EXTERN_C extern "C" #include <cstddef> #include <cstdio> #include <cstdint> #else #define XGB_EXTERN_C #include <stddef.h> #include <stdio.h> #include <stdint.h> #endif // __cplusplus #if defined(_MSC_VER) || defined(_WIN32) #define XGB_DLL XGB_EXTERN_C __declspec(dllexport) #else #define XGB_DLL XGB_EXTERN_C __attribute__ ((visibility ("default"))) #endif // defined(_MSC_VER) || defined(_WIN32) // manually define unsigned long typedef uint64_t bst_ulong; // NOLINT(*) /** * @mainpage * * \brief XGBoost C API reference. * * For the official document page see: * <a href="https://xgboost.readthedocs.io/en/stable/c.html">XGBoost C Package</a>. */ /** * @defgroup Library * * These functions are used to obtain general information about XGBoost including version, * build info and current global configuration. * * @{ */ /*! \brief handle to DMatrix */ typedef void *DMatrixHandle; // NOLINT(*) /*! \brief handle to Booster */ typedef void *BoosterHandle; // NOLINT(*) /*! * \brief Return the version of the XGBoost library being currently used. * * The output variable is only written if it's not NULL. * * \param major Store the major version number * \param minor Store the minor version number * \param patch Store the patch (revision) number */ XGB_DLL void XGBoostVersion(int* major, int* minor, int* patch); /*! * \brief Get compile information of shared library. * * \param out string encoded JSON object containing build flags and dependency version. * * \return 0 for success, -1 for failure */ XGB_DLL int XGBuildInfo(char const **out); /*! * \brief get string message of the last error * * all function in this file will return 0 when success * and -1 when an error occurred, * XGBGetLastError can be called to retrieve the error * * this function is thread safe and can be called by different thread * \return const char* error information */ XGB_DLL const char *XGBGetLastError(); /*! * \brief register callback function for LOG(INFO) messages -- helpful messages * that are not errors. * Note: this function can be called by multiple threads. The callback function * will run on the thread that registered it * \return 0 for success, -1 for failure */ XGB_DLL int XGBRegisterLogCallback(void (*callback)(const char*)); /*! * \brief Set global configuration (collection of parameters that apply globally). This function * accepts the list of key-value pairs representing the global-scope parameters to be * configured. The list of key-value pairs are passed in as a JSON string. * \param config a JSON string representing the list of key-value pairs. The JSON object shall * be flat: no value can be a JSON object or an array. * \return 0 for success, -1 for failure */ XGB_DLL int XGBSetGlobalConfig(char const *config); /*! * \brief Get current global configuration (collection of parameters that apply globally). * \param out_config pointer to received returned global configuration, represented as a JSON string. * \return 0 for success, -1 for failure */ XGB_DLL int XGBGetGlobalConfig(char const **out_config); /**@}*/ /** * @defgroup DMatrix * * @brief DMatrix is the baisc data storage for XGBoost used by all XGBoost algorithms * including both training, prediction and explanation. There are a few variants of * `DMatrix` including normal `DMatrix`, which is a CSR matrix, `QuantileDMatrix`, * which is used by histogram-based tree methods for saving memory, and lastly the * experimental external-memory-based DMatrix, which reads data in batches during * training. For the last two variants, see the @ref Streaming group. * * @{ */ /*! * \brief load a data matrix * \deprecated since 2.0.0 * \see XGDMatrixCreateFromURI() * \param fname the name of the file * \param silent whether print messages during loading * \param out a loaded data matrix * \return 0 when success, -1 when failure happens */ XGB_DLL int XGDMatrixCreateFromFile(const char *fname, int silent, DMatrixHandle *out); /*! * \brief load a data matrix * \param config JSON encoded parameters for DMatrix construction. Accepted fields are: * - uri: The URI of the input file. * - silent (optional): Whether to print message during loading. Default to true. * - data_split_mode (optional): Whether to split by row or column. In distributed mode, the * file is split accordingly; otherwise this is only an indicator on how the file was split * beforehand. Default to row. * \param out a loaded data matrix * \return 0 when success, -1 when failure happens */ XGB_DLL int XGDMatrixCreateFromURI(char const *config, DMatrixHandle *out); /*! * \brief create a matrix content from CSR format * \deprecated since 2.0.0 * \see XGDMatrixCreateFromCSR() */ XGB_DLL int XGDMatrixCreateFromCSREx(const size_t *indptr, const unsigned *indices, const float *data, size_t nindptr, size_t nelem, size_t num_col, DMatrixHandle *out); /** * @example c-api-demo.c */ /*! * \brief Create a matrix from CSR matrix. * \param indptr JSON encoded __array_interface__ to row pointers in CSR. * \param indices JSON encoded __array_interface__ to column indices in CSR. * \param data JSON encoded __array_interface__ to values in CSR. * \param ncol Number of columns. * \param config JSON encoded configuration. Required values are: * - missing: Which value to represent missing value. * - nthread (optional): Number of threads used for initializing DMatrix. * \param out created dmatrix * \return 0 when success, -1 when failure happens */ XGB_DLL int XGDMatrixCreateFromCSR(char const *indptr, char const *indices, char const *data, bst_ulong ncol, char const *config, DMatrixHandle *out); /*! * \brief Create a matrix from dense array. * \param data JSON encoded __array_interface__ to array values. * \param config JSON encoded configuration. Required values are: * - missing: Which value to represent missing value. * - nthread (optional): Number of threads used for initializing DMatrix. * \param out created dmatrix * \return 0 when success, -1 when failure happens */ XGB_DLL int XGDMatrixCreateFromDense(char const *data, char const *config, DMatrixHandle *out); /*! * \brief Create a matrix from a CSC matrix. * \param indptr JSON encoded __array_interface__ to column pointers in CSC. * \param indices JSON encoded __array_interface__ to row indices in CSC. * \param data JSON encoded __array_interface__ to values in CSC. * \param nrow number of rows in the matrix. * \param config JSON encoded configuration. Supported values are: * - missing: Which value to represent missing value. * - nthread (optional): Number of threads used for initializing DMatrix. * \param out created dmatrix * \return 0 when success, -1 when failure happens */ XGB_DLL int XGDMatrixCreateFromCSC(char const *indptr, char const *indices, char const *data, bst_ulong nrow, char const *c_json_config, DMatrixHandle *out); /*! * \brief create a matrix content from CSC format * \deprecated since 2.0.0 * \see XGDMatrixCreateFromCSC() */ XGB_DLL int XGDMatrixCreateFromCSCEx(const size_t *col_ptr, const unsigned *indices, const float *data, size_t nindptr, size_t nelem, size_t num_row, DMatrixHandle *out); /*! * \brief create matrix content from dense matrix * \param data pointer to the data space * \param nrow number of rows * \param ncol number columns * \param missing which value to repr