stats/feature_encoding_utils library

Feature scaling/encoding (bucketization, one-hot) — roadmap #589.

Functions

bucketize(num value, List<num> edges) → int: Bucketize numeric value into bin index for edges (sorted boundaries). Audited: 2026-06-12 11:26 EDT
oneHot(Object? value, List<Object?> categories) → List<int>: One-hot: value in categories -> list of 0/1 of length categories. Audited: 2026-06-12 11:26 EDT

saropa_dart_utils package
documentation
stats/feature_encoding_utils.dart

saropa_dart_utils package

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async/async_barrier_utils
async/async_more_utils
async/async_mutex_utils
async/async_semaphore_utils
async/batch_async_utils
async/batch_flush_utils
async/bounded_work_queue_utils
async/cancel_previous_exception
async/cancellation_token_utils
async/circuit_breaker_utils
async/compute_stream_transformer
async/debounce_utils
async/delay_utils
async/exponential_backoff_utils
async/heartbeat_utils
async/idempotent_async_utils
async/memoize_future_utils
async/observability_utils
async/race_cancel_utils
async/rate_limiter_utils
async/read_write_lock_utils
async/resource_pool_utils
async/retry_policy_utils
async/retry_utils
async/sequential_async_utils
async/sliding_window_rate_limiter_utils
async/stream_buffer_utils
async/stream_combine_utils
async/stream_debounce_utils
async/stream_window_utils
async/task_scheduler_utils
async/throttle_utils
async/timeout_fallback_utils
async/timeout_policy_utils
base64/base64_utils
base64/gzip_codec_io
base64/gzip_codec_stub
bool/bool_iterable_extensions
bool/bool_sort_extensions
bool/bool_string_extensions
caching/cache_interface
caching/lru_cache
caching/memoize_sync_utils
caching/mru_cache
caching/size_limit_cache
caching/ttl_cache
caching/write_through_cache
collections/backtracking_utils
collections/balanced_partition_utils
collections/bimap_utils
collections/bin_packing_utils
collections/bk_tree_utils
collections/bloom_filter_utils
collections/chunk_overlap_utils
collections/columnar_view_utils
collections/constrained_subset_utils
collections/damerau_levenshtein_utils
collections/dedup_set_expiry_utils
collections/dependency_resolver_utils
collections/difference_array_utils
collections/disjoint_set_utils
collections/fenwick_tree_utils
collections/greedy_set_cover_utils
collections/hierarchical_cluster_utils
collections/histogram_utils
collections/hyperloglog_utils
collections/interval_scheduling_utils
collections/interval_tree_utils
collections/inverted_index_utils
collections/item_similarity_utils
collections/kmeans_utils
collections/knapsack_utils
collections/lazy_combinatorics_utils
collections/lcs_sequence_utils
collections/lcs_substring_utils
collections/lis_utils
collections/lru_lfu_cache_utils
collections/min_max_heap_utils
collections/multi_criteria_sort_utils
collections/multi_index_collection_utils
collections/multi_key_group_utils
collections/multiset_utils
collections/nway_merge_utils
collections/online_mean_variance_utils
collections/pareto_frontier_utils
collections/pivot_unpivot_utils
collections/prefix_frequency_utils
collections/priority_map_utils
collections/quickselect_utils
collections/reservoir_sampling_utils
collections/ring_buffer_utils
collections/rolling_hash_utils
collections/row_column_table_utils
collections/run_detection_utils
collections/seeded_shuffle_utils
collections/segment_tree_utils
collections/session_clustering_utils
collections/similarity_dedup_utils
collections/skip_list_utils
collections/sliding_window_aggregate_utils
collections/spatial_grid_utils
collections/stable_matching_utils
collections/stream_quantile_utils
collections/string_pool_utils
collections/time_bucket_utils
collections/time_decay_counter_utils
collections/timeseries_buffer_utils
collections/top_k_heap_utils
collections/trie_utils
collections/weighted_interval_utils
collections/window_functions_utils
color/material_shade
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datetime/billing_cycle_utils
datetime/business_calendar_utils
datetime/calendar_diff_utils
datetime/calendar_heatmap_utils
datetime/date_constant_extensions
datetime/date_constants
datetime/date_format_preset_utils
datetime/date_time_arithmetic_extensions
datetime/date_time_bounds_extensions
datetime/date_time_business_days_utils
datetime/date_time_calendar_extensions
datetime/date_time_clamp_extensions
datetime/date_time_compare_age_extensions
datetime/date_time_comparison_extensions
datetime/date_time_extensions
datetime/date_time_fiscal_extensions
datetime/date_time_intl_display_extensions
datetime/date_time_list_extensions
datetime/date_time_more_extensions
datetime/date_time_nullable_extensions
datetime/date_time_overlap_utils
datetime/date_time_range_utils
datetime/date_time_relative_predicate_extensions
datetime/date_time_relative_utils
datetime/date_time_timezone_extensions
datetime/date_time_utils
datetime/date_time_week_extensions
datetime/duration_clock_format_extensions
datetime/duration_format_utils
datetime/duration_parse_utils
datetime/hebrew_date_converter
datetime/humanize_recurrence_utils
datetime/injectable_clock_utils
datetime/iso_interval_parse_utils
datetime/month_weekday_named_extensions
datetime/month_weekday_utils
datetime/period_split_utils
datetime/quiet_hours_utils
datetime/rate_limit_schedule_utils
datetime/recurrence_iterator_utils
datetime/relative_date_bucket_utils
datetime/rrule_parse_utils
datetime/simple_relative_day_utils
datetime/sla_calculator_utils
datetime/time_emoji_utils
datetime/time_rounding_utils
datetime/timebox_exception
datetime/timeseries_gap_utils
double/double_aspect_ratio_extensions
double/double_close_to_extensions
double/double_extensions
double/double_iterable_extensions
double/gradient_stop_range
enum/enum_iterable_extensions
flutter/color_extensions
flutter/material_color_utils
gesture/gesture_utils
gesture/swipe_properties
graph/astar_utils
graph/bfs_dfs_utils
graph/bipartite_utils
graph/connected_components_utils
graph/critical_path_utils
graph/dag_scheduler_utils
graph/dijkstra_utils
graph/floyd_warshall_utils
graph/graph_diff_utils
graph/graph_serialize_utils
graph/graph_simplify_utils
graph/graph_utils
graph/hierarchy_utils
graph/line_simplify_utils
graph/mst_utils
graph/multi_source_bfs_utils
graph/pagerank_utils
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graph/reachability_utils
graph/topological_sort_utils
graph/tree_utils
hex/hex_utils
html/html_entity_data
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iterable/iterable_diff_extensions
iterable/iterable_extensions
iterable/iterable_first_last_extensions
iterable/iterable_flatten_deep_extensions
iterable/iterable_flatten_extensions
iterable/iterable_group_by_extensions
iterable/iterable_indexed_extensions
iterable/iterable_list_ops_extensions
iterable/iterable_map_not_null_extensions
iterable/iterable_min_max_extensions
iterable/iterable_more_extensions
iterable/iterable_none_extensions
iterable/iterable_pairs_extensions
iterable/iterable_sort_extensions
iterable/iterable_split_extensions
iterable/iterable_stable_sort_extensions
iterable/iterable_sum_by_extensions
iterable/iterable_symmetric_diff_extensions
iterable/occurrence
iterable/run_length_utils
json/json_epoch_scale
json/json_iterables_utils
json/json_type_utils
json/json_utils
list/list_binary_search_extensions
list/list_default_empty_extensions
list/list_extensions
list/list_lower_extensions
list/list_mutate_during_iteration_extensions
list/list_nullable_extensions
list/list_nullable_string_sort_extensions
list/list_of_list_extensions
list/list_rotate_extensions
list/list_shuffle_seeded_extensions
list/list_string_extensions
list/list_top_k_extensions
list/make_list_extensions
list/unique_list_extensions
map/deep_equality_utils
map/deep_freeze_utils
map/map_deep_merge_extensions
map/map_deep_utils
map/map_default_extensions
map/map_diff_utils
map/map_extensions
map/map_flatten_extensions
map/map_from_entries_extensions
map/map_initials_sort_extensions
map/map_invert_extensions
map/map_merge_extensions
map/map_more_extensions
map/map_nested_extensions
map/map_nullable_extensions
map/map_pick_omit_extensions
map/map_transform_extensions
niche/checksum_utils
niche/color_utils
niche/dark_colors
niche/hash_utils
niche/name_utils
niche/natural_sort_utils
niche/niche_more_utils
niche/pad_format_utils
niche/random_string_utils
niche/string_diff_utils
num/math_utils
num/num_clamp_extensions
num/num_compact_parse_extensions
num/num_extensions
num/num_factorial_utils
num/num_format_extensions
num/num_intl_format_extensions
num/num_iterable_extensions
num/num_lerp_utils
num/num_locale_utils
num/num_min_max_utils
num/num_modulo_utils
num/num_more_extensions
num/num_prime_utils
num/num_range_extensions
num/num_range_inclusive_extensions
num/num_round_multiple_extensions
num/num_safe_division_extensions
num/num_stats_utils
num/num_utils
num/unit_conversion_utils
object/assert_utils
object/cast_utils
object/coalesce_utils
object/copy_with_defaults_utils
object/default_value_extensions
object/identity_utils
object/nullable_more_extensions
object/pipe_compose_utils
object/pipe_utils
object/require_utils
object/shallow_copy_utils
parsing/accept_language_utils
parsing/canonicalize_json_utils
parsing/changelog_section_utils
parsing/config_precedence_utils
parsing/cron_utils
parsing/csv_dialect_utils
parsing/csv_parse_utils
parsing/csv_writer_utils
parsing/email_validation_utils
parsing/expression_evaluator_utils
parsing/flatten_explode_utils
parsing/hex_color_utils
parsing/http_header_parse_utils
parsing/ini_parser_utils
parsing/isbn_utils
parsing/json_diff_patch_utils
parsing/json_model_mapper_utils
parsing/json_path_utils
parsing/json_pretty_print_utils
parsing/json_schema_utils
parsing/log_line_parser_utils
parsing/luhn_utils
parsing/nested_query_parser_utils
parsing/parse_bool_utils
parsing/parse_list_utils
parsing/parser_error_utils
parsing/parsing_more_utils
parsing/phone_normalize_utils
parsing/range_header_utils
parsing/semver_utils
parsing/size_parse_utils
parsing/sql_filter_utils
parsing/stable_hash_utils
parsing/validate_non_empty_utils
parsing/varint_utils
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parsing/version_parse_utils
random/common_random
regex/regex_common_utils
regex/regex_match_utils
saropa_dart_utils
stats/bucketed_aggregate_utils
stats/cdf_utils
stats/change_point_cusum_utils
stats/confidence_interval_utils
stats/correlation_utils
stats/data_binning_utils
stats/data_normalization_utils
stats/feature_encoding_utils
stats/funnel_utils
stats/gini_utils
stats/grouped_stats_utils
stats/linear_regression_utils
stats/log_transform_utils
stats/metric_rollup_utils
stats/moving_average_utils
stats/outlier_mad_utils
stats/percentile_rank_utils
stats/quantile_summary_utils
stats/retention_utils
stats/robust_stats_utils
stats/rolling_correlation_utils
stats/sampling_utils
string/acronym_extract_utils
string/apply_patch_utils
string/between_result
string/code_block_extract_utils
string/did_you_mean_utils
string/diff_render_utils
string/duplicate_doc_utils
string/email_quote_strip_utils
string/excerpt_utils
string/fuzzy_search_utils
string/glob_utils
string/html_sanitizer_utils
string/human_name_parser_utils
string/icu_message_utils
string/keyphrase_utils
string/language_detect_utils
string/levenshtein_utils
string/markdown_plain_utils
string/markdown_snippet_utils
string/myers_diff_utils
string/ngram_utils
string/redline_utils
string/safe_html_excerpt_utils
string/search_index_utils
string/search_query_parser_utils
string/sensitive_scrub_utils
string/slug_dedup_utils
string/soundex_utils
string/spelling_key_lookup_utils
string/string_analysis_extensions
string/string_ansi_extensions
string/string_between_extensions
string/string_case_acronym_extensions
string/string_case_extensions
string/string_character_extensions
string/string_compare_extensions
string/string_csv_extensions
string/string_diacritics_extensions
string/string_extensions
string/string_folded_compare_extensions
string/string_highlight_extensions
string/string_indent_extensions
string/string_key_value_extensions
string/string_line_extensions
string/string_lower_extensions
string/string_manipulation_extensions
string/string_mask_extensions
string/string_more_extensions
string/string_nullable_extensions
string/string_number_extensions
string/string_punctuation
string/string_regex_extensions
string/string_replace_n_extensions
string/string_search_extensions
string/string_slug_extensions
string/string_split_extensions
string/string_template_extensions
string/string_text_extensions
string/string_truncate_middle_extensions
string/string_unicode_extensions
string/string_utils
string/string_wildcard_extensions
string/string_words_extensions
string/string_wrap_extensions
string/template_engine_utils
string/text_chunk_utils
string/text_diff_structured_utils
string/text_direction_parse_utils
string/text_fingerprint_utils
string/text_fold_utils
string/text_normalize_pipeline_utils
string/text_similarity_utils
string/tokenize_sentences_utils
string/tokenizer_pipeline_utils
string/unicode_class_blocks
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string/unicode_class_utils
string/url_extract_utils
suite/crash_coverage_audit
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testing/debug_utils
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url/path_extension_utils
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url/url_build_utils
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url/url_extensions
url/url_query_utils
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uuid/uuid_utils
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validation/cross_field_validation_utils
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validation/guard_utils
validation/input_shaping_utils
validation/ip_cidr_utils
validation/jwt_structure_utils
validation/password_strength_utils
validation/path_validator_utils
validation/pii_detector_utils
validation/safe_parse_utils
validation/safe_temp_name_utils
validation/typed_positive_utils
validation/validation_error_utils