Function xgboost_sys::XGBoosterPredict

pub unsafe extern "C" fn XGBoosterPredict(
    handle: BoosterHandle,
    dmat: DMatrixHandle,
    option_mask: c_int,
    ntree_limit: c_uint,
    out_len: *mut bst_ulong,
    out_result: *mut *const f32
) -> c_int

\brief make prediction based on dmat \param handle handle \param dmat data matrix \param option_mask bit-mask of options taken in prediction, possible values 0:normal prediction 1:output margin instead of transformed value 2:output leaf index of trees instead of leaf value, note leaf index is unique per tree 4:output feature contributions to individual predictions \param ntree_limit limit number of trees used for prediction, this is only valid for boosted trees when the parameter is set to 0, we will use all the trees \param out_len used to store length of returning result \param out_result used to set a pointer to array \return 0 when success, -1 when failure happens