API for trendseries
Extract Trends from Time Series

Global functions
.abort_not_date Source code
.attach_dates Source code
.augment_rolling_grouped Source code
.augment_rolling_single Source code
.augment_trend_suffix Source code
.beveridge_nelson_arima Source code
.blank_short_windows Source code
.check_group_lengths Source code
.check_index_period_coverage Source code
.check_non_empty Source code
.check_regular_grid Source code
.compute_trend_columns Source code
.decompose_bsm Source code
.decompose_classic Source code
.decompose_components_to_df Source code
.decompose_methods Source code
.decompose_regression Source code
.decompose_seats Source code
.decompose_series_grouped Source code
.decompose_series_single Source code
.decompose_stl Source code
.default_band Source code
.default_hp_lambda Source code
.detect_frequency Source code
.detrend_series_col Source code
.detrend_unique_name Source code
.df_to_ts_internal Source code
.df_to_ts_preserve_na Source code
.ewma Source code
.expanding_stat Source code
.expanding_stat_raw Source code
.extract_bk_trend Source code
.extract_bn_trend Source code
.extract_cf_trend Source code
.extract_ewma_trend Source code
.extract_gaussian_trend Source code
.extract_hamilton_trend Source code
.extract_henderson_trend Source code
.extract_hp_trend Source code
.extract_kalman_trend Source code
.extract_kernel_trend Source code
.extract_loess_trend Source code
.extract_ma_trend Source code
.extract_median_trend Source code
.extract_poly_trend Source code
.extract_spencer_trend Source code
.extract_spline_trend Source code
.extract_stl_trend Source code
.extract_trends_impl Source code
.extract_triangular_trend Source code
.extract_ucm_trend Source code
.extract_wma_trend Source code
.format_periods Source code
.frequency_unit Source code
.gaussian_filter Source code
.get_hamilton_params Source code
.hamilton_filter Source code
.henderson_weights Source code
.index_group_indices Source code
.index_group_label Source code
.index_one_series Source code
.inform_augment_frequency Source code
.inform_rolling Source code
.kalman_smooth Source code
.kernel_smooth Source code
.log_conditions Source code
.ma_2x Source code
.ma_2xn Source code
.map_unified_params Source code
.median_filter Source code
.method_info Source code
.method_params Source code
.min_obs Source code
.more_periods Source code
.new_condition_log Source code
.normalize_stl_params Source code
.observation_years Source code
.observed_span Source code
.on_time_base Source code
.pad_to_template Source code
.period_key Source code
.process_unified_params Source code
.replay_conditions Source code
.resolve_augment_frequency Source code
.resolve_base_period Source code
.restore_time_base Source code
.roll_change Source code
.roll_fixed Source code
.roll_fixed_raw Source code
.roll_one Source code
.roll_series_list Source code
.roll_ytd Source code
.rolling_info Source code
.safe_merge Source code
.sma Source code
.spencer Source code
.start_period Source code
.time_base Source code
.trends_to_df Source code
.triangular Source code
.trim_to_observed Source code
.ts_exp Source code
.ts_periods Source code
.ts_start_period Source code
.tsibble_arguments Source code
.ucm_trend Source code
.union_time_base Source code
.unique_column_name Source code
.use_2xn Source code
.valid_methods Source code
.valid_rolling_stats Source code
.validate_augment_trends Source code
.validate_chain_scale Source code
.validate_index_args Source code
.validate_methods Source code
.validate_params Source code
.validate_params_keys Source code
.validate_rolling_params Source code
.validate_unified_params Source code
.validate_ytd_calendar Source code
.via_tsibble Source code
.warn_ignored_args Source code
.warn_incomplete_index_period Source code
.warn_ytd_partial_start Source code
.wma Source code
`%||%` Source code
augment_rolling Man page Source code
augment_trends Man page Source code
coffee_arabica Man page
coffee_robusta Man page
converters Man page
decompose_series Man page Source code
deseason_series Man page Source code
detrend_series Man page Source code
df_to_ts Man page Source code
electric Man page
electricity Man page
extract_trends Man page Source code
gdp_construction Man page
ibcbr Man page
index_series Man page Source code
metadata_series Man page
oil_derivatives Man page
retail_autofuel Man page
retail_volume Man page
roll_series Man page Source code
transit_london_avgs Man page
transit_london_monthly Man page
ts_to_df Man page Source code
utils Man page
vehicles Man page
trendseries documentation built on Oct. 1, 2026, 5:10 p.m.