Index A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X A abs() (BPt.Dataset method) add() (BPt.Dataset method) add_data_files() (BPt.Dataset method) add_layer() (BPt.p.Array method) (BPt.p.Choice method) (BPt.p.Dict method) (BPt.p.Instrumentation method) (BPt.p.Log method) (BPt.p.Scalar method) (BPt.p.TransitionChoice method) (BPt.p.Tuple method) add_prefix() (BPt.Dataset method) add_scope() (BPt.Dataset method) add_suffix() (BPt.Dataset method) add_unique_overlap() (BPt.Dataset method) agg() (BPt.Dataset method) aggregate() (BPt.Dataset method) align() (BPt.Dataset method) all() (BPt.Dataset method) all_train_subjects (BPt.EvalResults property) (BPt.EvalResultsSubset property) all_val_subjects (BPt.EvalResults property) (BPt.EvalResultsSubset property) any() (BPt.Dataset method) append() (BPt.Dataset method) (BPt.Duplicate method) (BPt.Intersection method) (BPt.Pipe method) (BPt.Select method) apply() (BPt.Dataset method) apply_exclusions() (BPt.Dataset method) apply_inclusions() (BPt.Dataset method) applymap() (BPt.Dataset method) args (BPt.p.Array property) (BPt.p.Choice property) (BPt.p.Dict property) (BPt.p.Instrumentation property) (BPt.p.Log property) (BPt.p.Scalar property) (BPt.p.TransitionChoice property) (BPt.p.Tuple property) Array (class in BPt.p) asfreq() (BPt.Dataset method) asof() (BPt.Dataset method) assign() (BPt.Dataset method) astype() (BPt.Dataset method) at (BPt.Dataset property) at_time() (BPt.Dataset method) attrs (BPt.Dataset property) auto_detect_categorical() (BPt.Dataset method) axes (BPt.Dataset property) B backfill() (BPt.Dataset method) between_time() (BPt.Dataset method) bfill() (BPt.Dataset method) binarize() (BPt.Dataset method) bool() (BPt.Dataset method) bounds (BPt.p.Array property) (BPt.p.Log property) (BPt.p.Scalar property) boxplot() (BPt.Dataset method) BPt module build() (BPt.Ensemble method) (BPt.FeatSelector method) (BPt.Imputer method) (BPt.Loader method) (BPt.Model method) (BPt.ModelPipeline method) (BPt.Pipeline method) (BPt.Sampler method) (BPt.Scaler method) (BPt.Transformer method) C Choice (class in BPt.p) choices (BPt.p.Choice property) (BPt.p.TransitionChoice property) clear() (BPt.CompareDict method) (BPt.Duplicate method) (BPt.Intersection method) (BPt.Pipe method) (BPt.Select method) clip() (BPt.Dataset method) coef_ (BPt.EvalResults property) (BPt.EvalResultsSubset property) columns (BPt.Dataset attribute) combine() (BPt.Dataset method) combine_first() (BPt.Dataset method) Compare (class in BPt) compare() (BPt.Dataset method) (BPt.EvalResults method) (BPt.EvalResultsSubset method) compare_dict_from_existing() (in module BPt) CompareDict (class in BPt) CompareSubset (class in BPt) consolidate_data_files() (BPt.Dataset method) convert_dtypes() (BPt.Dataset method) copy() (BPt.CompareDict method) (BPt.CV method) (BPt.CVStrategy method) (BPt.Dataset method) (BPt.Duplicate method) (BPt.Ensemble method) (BPt.FeatSelector method) (BPt.Imputer method) (BPt.Intersection method) (BPt.Loader method) (BPt.Model method) (BPt.ModelPipeline method) (BPt.p.Array method) (BPt.p.Choice method) (BPt.p.Dict method) (BPt.p.Instrumentation method) (BPt.p.Log method) (BPt.p.Scalar method) (BPt.p.TransitionChoice method) (BPt.p.Tuple method) (BPt.ParamSearch method) (BPt.Pipe method) (BPt.Pipeline method) (BPt.ProblemSpec method) (BPt.Sampler method) (BPt.Scaler method) (BPt.Select method) (BPt.Transformer method) copy_as_non_input() (BPt.Dataset method) corr() (BPt.Dataset method) corrwith() (BPt.Dataset method) count() (BPt.Dataset method) (BPt.Duplicate method) (BPt.Intersection method) (BPt.Pipe method) (BPt.Select method) cov() (BPt.Dataset method) cross_val_score() (in module BPt) cross_validate() (in module BPt) cummax() (BPt.Dataset method) cummin() (BPt.Dataset method) cumprod() (BPt.Dataset method) cumsum() (BPt.Dataset method) cv (BPt.EvalResults property) (BPt.EvalResultsSubset property) CV (class in BPt) CVStrategy (class in BPt) D Dataset (class in BPt) describe() (BPt.Dataset method) descriptors (BPt.p.Array property) (BPt.p.Choice property) (BPt.p.Dict property) (BPt.p.Instrumentation property) (BPt.p.Log property) (BPt.p.Scalar property) (BPt.p.TransitionChoice property) (BPt.p.Tuple property) Dict (class in BPt.p) diff() (BPt.Dataset method) dimension (BPt.p.Array property) (BPt.p.Choice property) (BPt.p.Dict property) (BPt.p.Instrumentation property) (BPt.p.Log property) (BPt.p.Scalar property) (BPt.p.TransitionChoice property) (BPt.p.Tuple property) display_scopes() (BPt.Dataset method) div() (BPt.Dataset method) divide() (BPt.Dataset method) dot() (BPt.Dataset method) drop() (BPt.Dataset method) drop_cols() (BPt.Dataset method) drop_cols_by_nan() (BPt.Dataset method) drop_cols_by_unique_val() (BPt.Dataset method) drop_duplicate_cols() (BPt.Dataset method) drop_duplicates() (BPt.Dataset method) drop_id_cols() (BPt.Dataset method) drop_nan_subjects() (BPt.Dataset method) drop_subjects_by_nan() (BPt.Dataset method) droplevel() (BPt.Dataset method) dropna() (BPt.Dataset method) dtypes (BPt.Dataset property) Duplicate (class in BPt) duplicated() (BPt.Dataset method) E empty (BPt.Dataset property) Ensemble (class in BPt) eq() (BPt.Dataset method) equals() (BPt.Dataset method) estimator (BPt.EvalResults property) (BPt.EvalResultsSubset property) estimators (BPt.EvalResults property) (BPt.EvalResultsSubset property) eval() (BPt.Dataset method) EvalResults (class in BPt) EvalResultsSubset (class in BPt) evaluate() (in module BPt) ewm() (BPt.Dataset method) expanding() (BPt.Dataset method) explode() (BPt.Dataset method) extend() (BPt.Duplicate method) (BPt.Intersection method) (BPt.Pipe method) (BPt.Select method) F feat_names (BPt.EvalResults property) (BPt.EvalResultsSubset property) FeatSelector (class in BPt) feature_importances_ (BPt.EvalResults property) (BPt.EvalResultsSubset property) ffill() (BPt.Dataset method) fillna() (BPt.Dataset method) filter() (BPt.Dataset method) filter_categorical_by_percent() (BPt.Dataset method) filter_outliers_by_percent() (BPt.Dataset method) filter_outliers_by_std() (BPt.Dataset method) first() (BPt.Dataset method) first_valid_index() (BPt.Dataset method) fis_ (BPt.EvalResults property) (BPt.EvalResultsSubset property) fit() (BPt.extensions.Identity method) (BPt.extensions.SingleConnectivityMeasure method) fit_transform() (BPt.extensions.Identity method) (BPt.extensions.SingleConnectivityMeasure method) fixed_piece_order (BPt.ModelPipeline property) flags (BPt.Dataset property) floordiv() (BPt.Dataset method) freeze() (BPt.p.Array method) (BPt.p.Choice method) (BPt.p.Dict method) (BPt.p.Instrumentation method) (BPt.p.Log method) (BPt.p.Scalar method) (BPt.p.TransitionChoice method) (BPt.p.Tuple method) from_dict() (BPt.Dataset class method) from_records() (BPt.Dataset class method) fromkeys() (BPt.CompareDict method) G ge() (BPt.Dataset method) generation (BPt.p.Array property) (BPt.p.Choice property) (BPt.p.Dict property) (BPt.p.Instrumentation property) (BPt.p.Log property) (BPt.p.Scalar property) (BPt.p.TransitionChoice property) (BPt.p.Tuple property) get() (BPt.CompareDict method) (BPt.Dataset method) get_coefs() (BPt.EvalResults method) (BPt.EvalResultsSubset method) get_cols() (BPt.Dataset method) get_estimator() (in module BPt) get_feature_importances() (BPt.EvalResults method) (BPt.EvalResultsSubset method) get_file_mapping() (BPt.Dataset method) get_fis() (BPt.EvalResults method) (BPt.EvalResultsSubset method) get_inverse_fis() (BPt.EvalResults method) (BPt.EvalResultsSubset method) get_nan_subjects() (BPt.Dataset method) get_non_nan_subjects() (BPt.Dataset method) get_params() (BPt.CV method) (BPt.CVStrategy method) (BPt.Ensemble method) (BPt.extensions.Identity method) (BPt.extensions.SingleConnectivityMeasure method) (BPt.FeatSelector method) (BPt.Imputer method) (BPt.Loader method) (BPt.Model method) (BPt.ModelPipeline method) (BPt.ParamSearch method) (BPt.Pipeline method) (BPt.ProblemSpec method) (BPt.Sampler method) (BPt.Scaler method) (BPt.Transformer method) get_permuted_Xy() (BPt.Dataset method) get_preds_dfs() (BPt.EvalResults method) (BPt.EvalResultsSubset method) get_roles() (BPt.Dataset method) get_scopes() (BPt.Dataset method) get_standardized_data() (BPt.p.Array method) (BPt.p.Choice method) (BPt.p.Dict method) (BPt.p.Instrumentation method) (BPt.p.Log method) (BPt.p.Scalar method) (BPt.p.TransitionChoice method) (BPt.p.Tuple method) get_subjects() (BPt.Dataset method) get_value_hash() (BPt.p.Array method) (BPt.p.Choice method) (BPt.p.Dict method) (BPt.p.Instrumentation method) (BPt.p.Log method) (BPt.p.Scalar method) (BPt.p.TransitionChoice method) (BPt.p.Tuple method) get_values() (BPt.Dataset method) get_X_transform_df() (BPt.EvalResults method) (BPt.EvalResultsSubset method) get_Xy() (BPt.Dataset method) groupby() (BPt.Dataset method) gt() (BPt.Dataset method) H head() (BPt.Dataset method) hist() (BPt.Dataset method) I iat (BPt.Dataset property) Identity (class in BPt.extensions) idxmax() (BPt.Dataset method) idxmin() (BPt.Dataset method) iloc (BPt.Dataset property) Imputer (class in BPt) index (BPt.Dataset attribute) (BPt.p.Choice property) (BPt.p.TransitionChoice property) index() (BPt.Duplicate method) (BPt.Intersection method) (BPt.Pipe method) (BPt.Select method) indices (BPt.p.Choice property) (BPt.p.TransitionChoice property) infer_objects() (BPt.Dataset method) info() (BPt.Dataset method) insert() (BPt.Dataset method) (BPt.Duplicate method) (BPt.Intersection method) (BPt.Pipe method) (BPt.Select method) Instrumentation (class in BPt.p) integer (BPt.p.Array property) (BPt.p.Log property) (BPt.p.Scalar property) interpolate() (BPt.Dataset method) Intersection (class in BPt) inverse_transform() (BPt.extensions.Identity method) (BPt.extensions.SingleConnectivityMeasure method) is_array_like() (in module BPt.util) isetitem() (BPt.Dataset method) isin() (BPt.Dataset method) isna() (BPt.Dataset method) isnull() (BPt.Dataset method) items() (BPt.CompareDict method) (BPt.Dataset method) (BPt.p.Dict method) iteritems() (BPt.Dataset method) iterrows() (BPt.Dataset method) itertuples() (BPt.Dataset method) J join() (BPt.Dataset method) K k_bin() (BPt.Dataset method) keys() (BPt.CompareDict method) (BPt.Dataset method) (BPt.p.Dict method) kurt() (BPt.Dataset method) kurtosis() (BPt.Dataset method) kwargs (BPt.p.Array property) (BPt.p.Choice property) (BPt.p.Dict property) (BPt.p.Instrumentation property) (BPt.p.Log property) (BPt.p.Scalar property) (BPt.p.TransitionChoice property) (BPt.p.Tuple property) L last() (BPt.Dataset method) last_valid_index() (BPt.Dataset method) le() (BPt.Dataset method) Loader (class in BPt) loc (BPt.Dataset property) Log (class in BPt.p) lookup() (BPt.Dataset method) losses (BPt.p.Array property) (BPt.p.Choice property) (BPt.p.Dict property) (BPt.p.Instrumentation property) (BPt.p.Log property) (BPt.p.Scalar property) (BPt.p.TransitionChoice property) (BPt.p.Tuple property) lt() (BPt.Dataset method) M mad() (BPt.Dataset method) mask() (BPt.Dataset method) max() (BPt.Dataset method) mean() (BPt.Dataset method) mean_scores (BPt.EvalResults property) (BPt.EvalResultsSubset property) mean_timing (BPt.EvalResults property) (BPt.EvalResultsSubset property) median() (BPt.Dataset method) melt() (BPt.Dataset method) memory_usage() (BPt.Dataset method) merge() (BPt.Dataset method) min() (BPt.Dataset method) mod() (BPt.Dataset method) mode() (BPt.Dataset method) Model (class in BPt) ModelPipeline (class in BPt) module BPt mul() (BPt.Dataset method) multiply() (BPt.Dataset method) mutate() (BPt.p.Array method) (BPt.p.Choice method) (BPt.p.Dict method) (BPt.p.Instrumentation method) (BPt.p.Log method) (BPt.p.Scalar method) (BPt.p.TransitionChoice method) (BPt.p.Tuple method) N n_folds (BPt.EvalResults property) (BPt.EvalResultsSubset property) n_subjects (BPt.EvalResults property) (BPt.EvalResultsSubset property) name (BPt.p.Array property) (BPt.p.Choice property) (BPt.p.Dict property) (BPt.p.Instrumentation property) (BPt.p.Log property) (BPt.p.Scalar property) (BPt.p.TransitionChoice property) (BPt.p.Tuple property) nan_info() (BPt.Dataset method) nan_to_class() (BPt.Dataset method) ndim (BPt.Dataset property) ne() (BPt.Dataset method) nlargest() (BPt.Dataset method) notna() (BPt.Dataset method) notnull() (BPt.Dataset method) nsmallest() (BPt.Dataset method) nunique() (BPt.Dataset method) O Option (class in BPt) ordinalize() (BPt.Dataset method) P pad() (BPt.Dataset method) pairwise_bayesian() (BPt.CompareDict method) pairwise_t_stats() (BPt.CompareDict method) ParamSearch (class in BPt) pct_change() (BPt.Dataset method) permutation_importance() (BPt.EvalResults method) (BPt.EvalResultsSubset method) Pipe (class in BPt) pipe() (BPt.Dataset method) Pipeline (class in BPt) pivot() (BPt.Dataset method) pivot_table() (BPt.Dataset method) plot() (BPt.Dataset method) plot_bivar() (BPt.Dataset method) plots() (BPt.Dataset method) pop() (BPt.CompareDict method) (BPt.Dataset method) (BPt.Duplicate method) (BPt.Intersection method) (BPt.Pipe method) (BPt.Select method) popitem() (BPt.CompareDict method) pow() (BPt.Dataset method) preds (BPt.EvalResults property) (BPt.EvalResultsSubset property) print_all() (BPt.ModelPipeline method) (BPt.ProblemSpec method) ProblemSpec (class in BPt) prod() (BPt.Dataset method) product() (BPt.Dataset method) ps (BPt.EvalResults property) (BPt.EvalResultsSubset property) Q quantile() (BPt.Dataset method) query() (BPt.Dataset method) R radd() (BPt.Dataset method) random_state (BPt.p.Array property) (BPt.p.Choice property) (BPt.p.Dict property) (BPt.p.Instrumentation property) (BPt.p.Log property) (BPt.p.Scalar property) (BPt.p.TransitionChoice property) (BPt.p.Tuple property) rank() (BPt.Dataset method) rdiv() (BPt.Dataset method) recombine() (BPt.p.Array method) (BPt.p.Choice method) (BPt.p.Dict method) (BPt.p.Instrumentation method) (BPt.p.Log method) (BPt.p.Scalar method) (BPt.p.TransitionChoice method) (BPt.p.Tuple method) register_cheap_constraint() (BPt.p.Array method) (BPt.p.Choice method) (BPt.p.Dict method) (BPt.p.Instrumentation method) (BPt.p.Log method) (BPt.p.Scalar method) (BPt.p.TransitionChoice method) (BPt.p.Tuple method) reindex() (BPt.Dataset method) reindex_like() (BPt.Dataset method) remove() (BPt.Duplicate method) (BPt.Intersection method) (BPt.Pipe method) (BPt.Select method) remove_scope() (BPt.Dataset method) rename() (BPt.Dataset method) rename_axis() (BPt.Dataset method) reorder_levels() (BPt.Dataset method) replace() (BPt.Dataset method) resample() (BPt.Dataset method) reserved_roles (BPt.Dataset property) reservered_scopes (BPt.Dataset property) reset_index() (BPt.Dataset method) reverse() (BPt.Duplicate method) (BPt.Intersection method) (BPt.Pipe method) (BPt.Select method) rfloordiv() (BPt.Dataset method) rmod() (BPt.Dataset method) rmul() (BPt.Dataset method) rolling() (BPt.Dataset method) round() (BPt.Dataset method) rpow() (BPt.Dataset method) rsub() (BPt.Dataset method) rtruediv() (BPt.Dataset method) run_permutation_test() (BPt.EvalResults method) (BPt.EvalResultsSubset method) S sample() (BPt.Dataset method) (BPt.p.Array method) (BPt.p.Choice method) (BPt.p.Dict method) (BPt.p.Instrumentation method) (BPt.p.Log method) (BPt.p.Scalar method) (BPt.p.TransitionChoice method) (BPt.p.Tuple method) Sampler (class in BPt) satisfies_constraints() (BPt.p.Array method) (BPt.p.Choice method) (BPt.p.Dict method) (BPt.p.Instrumentation method) (BPt.p.Log method) (BPt.p.Scalar method) (BPt.p.TransitionChoice method) (BPt.p.Tuple method) save_docx_table() (in module BPt.util) save_test_split() (BPt.Dataset method) save_train_split() (BPt.Dataset method) Scalar (class in BPt.p) Scaler (class in BPt) score (BPt.EvalResults property) (BPt.EvalResultsSubset property) scores (BPt.EvalResults property) (BPt.EvalResultsSubset property) Select (class in BPt) select_dtypes() (BPt.Dataset method) sem() (BPt.Dataset method) set_axis() (BPt.Dataset method) set_bounds() (BPt.p.Array method) (BPt.p.Log method) (BPt.p.Scalar method) set_flags() (BPt.Dataset method) set_index() (BPt.Dataset method) set_integer_casting() (BPt.p.Array method) (BPt.p.Log method) (BPt.p.Scalar method) set_mutation() (BPt.p.Array method) (BPt.p.Log method) (BPt.p.Scalar method) set_name() (BPt.p.Array method) (BPt.p.Choice method) (BPt.p.Dict method) (BPt.p.Instrumentation method) (BPt.p.Log method) (BPt.p.Scalar method) (BPt.p.TransitionChoice method) (BPt.p.Tuple method) set_non_input() (BPt.Dataset method) set_params() (BPt.CV method) (BPt.CVStrategy method) (BPt.Ensemble method) (BPt.extensions.Identity method) (BPt.extensions.SingleConnectivityMeasure method) (BPt.FeatSelector method) (BPt.Imputer method) (BPt.Loader method) (BPt.Model method) (BPt.ModelPipeline method) (BPt.ParamSearch method) (BPt.Pipeline method) (BPt.ProblemSpec method) (BPt.Sampler method) (BPt.Scaler method) (BPt.Transformer method) set_recombination() (BPt.p.Array method) (BPt.p.Log method) (BPt.p.Scalar method) set_role() (BPt.Dataset method) set_roles() (BPt.Dataset method) set_standardized_data() (BPt.p.Array method) (BPt.p.Choice method) (BPt.p.Dict method) (BPt.p.Instrumentation method) (BPt.p.Log method) (BPt.p.Scalar method) (BPt.p.TransitionChoice method) (BPt.p.Tuple method) set_target() (BPt.Dataset method) set_test_split() (BPt.Dataset method) set_train_split() (BPt.Dataset method) setdefault() (BPt.CompareDict method) shape (BPt.Dataset property) shift() (BPt.Dataset method) sigma (BPt.p.Array property) (BPt.p.Log property) (BPt.p.Scalar property) SingleConnectivityMeasure (class in BPt.extensions) size (BPt.Dataset property) skew() (BPt.Dataset method) slice_shift() (BPt.Dataset method) sort() (BPt.Duplicate method) (BPt.Intersection method) (BPt.Pipe method) (BPt.Select method) sort_index() (BPt.Dataset method) sort_values() (BPt.Dataset method) spawn_child() (BPt.p.Array method) (BPt.p.Choice method) (BPt.p.Dict method) (BPt.p.Instrumentation method) (BPt.p.Log method) (BPt.p.Scalar method) (BPt.p.TransitionChoice method) (BPt.p.Tuple method) split_by() (BPt.Dataset method) squeeze() (BPt.Dataset method) stack() (BPt.Dataset method) std() (BPt.Dataset method) std_scores (BPt.EvalResults property) (BPt.EvalResultsSubset property) style (BPt.Dataset property) sub() (BPt.Dataset method) subset_by() (BPt.EvalResults method) (BPt.EvalResultsSubset method) subtract() (BPt.Dataset method) sum() (BPt.Dataset method) summary() (BPt.CompareDict method) (BPt.Dataset method) swapaxes() (BPt.Dataset method) swaplevel() (BPt.Dataset method) T T (BPt.Dataset property) tail() (BPt.Dataset method) take() (BPt.Dataset method) test_split() (BPt.Dataset method) ThresholdNetworkMeasures (class in BPt.extensions) timing (BPt.EvalResults property) (BPt.EvalResultsSubset property) to_binary() (BPt.Dataset method) to_clipboard() (BPt.Dataset method) to_csv() (BPt.Dataset method) to_data_file() (BPt.Dataset method) to_dict() (BPt.Dataset method) to_excel() (BPt.Dataset method) to_feather() (BPt.Dataset method) to_gbq() (BPt.Dataset method) to_grid() (BPt.p.Array method) (BPt.p.Choice method) (BPt.p.Dict method) (BPt.p.Instrumentation method) (BPt.p.Log method) (BPt.p.Scalar method) (BPt.p.TransitionChoice method) (BPt.p.Tuple method) to_hdf() (BPt.Dataset method) to_html() (BPt.Dataset method) to_json() (BPt.Dataset method) to_latex() (BPt.Dataset method) to_markdown() (BPt.Dataset method) to_numpy() (BPt.Dataset method) to_orc() (BPt.Dataset method) to_parquet() (BPt.Dataset method) to_period() (BPt.Dataset method) to_pickle() (BPt.Dataset method) (BPt.EvalResults method) (BPt.EvalResultsSubset method) to_records() (BPt.Dataset method) to_sql() (BPt.Dataset method) to_stata() (BPt.Dataset method) to_string() (BPt.Dataset method) to_timestamp() (BPt.Dataset method) to_xarray() (BPt.Dataset method) to_xml() (BPt.Dataset method) train_split() (BPt.Dataset method) train_subjects (BPt.EvalResults property) (BPt.EvalResultsSubset property) transform() (BPt.Dataset method) (BPt.extensions.Identity method) (BPt.extensions.SingleConnectivityMeasure method) Transformer (class in BPt) TransitionChoice (class in BPt.p) transitions (BPt.p.TransitionChoice property) transpose() (BPt.Dataset method) truediv() (BPt.Dataset method) truncate() (BPt.Dataset method) tshift() (BPt.Dataset method) Tuple (class in BPt.p) tz_convert() (BPt.Dataset method) tz_localize() (BPt.Dataset method) U unstack() (BPt.Dataset method) update() (BPt.CompareDict method) (BPt.Dataset method) update_data_file_paths() (BPt.Dataset method) V val_subjects (BPt.EvalResults property) (BPt.EvalResultsSubset property) value_counts() (BPt.Dataset method) values (BPt.Dataset property) values() (BPt.CompareDict method) (BPt.p.Dict method) ValueSubset (class in BPt) var() (BPt.Dataset method) verbose (BPt.Dataset property) W weighted_mean_scores (BPt.EvalResults property) (BPt.EvalResultsSubset property) where() (BPt.Dataset method) X xs() (BPt.Dataset method)