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fn_registry/python/functions/datascience/geometric_mean.md
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egutierrez dabc945eda feat: extraccion masiva footprint_aurgi (41 funcs + 4 types + stack Docker geo)
Extrae al registry funciones del proyecto interno footprint_aurgi:
- core (6): slugify_ascii, normalize_for_join, cp_provincia_es, infer_provincia_from_cp, safe_read_csv_fallback, csv_to_parquet_duckdb
- geo puras (7): haversine_km, point_in_ring, point_in_polygon, point_in_polygons_bbox, polygon_bbox, extent_with_padding, distance_bucket
- geo I/O (4): load_geojson_polygons, load_boundary_gdf, add_basemap_osm, add_basemap_with_timeout
- valhalla client (4): valhalla_route, valhalla_isochrone, valhalla_isochrones_async, valhalla_matrix_1_to_n
- datascience stats (7): trimmed_mean, geometric_mean, detect_distribution_type, best_central_tendency, summary_stats, kde_density_levels, alpha_shape_concave_hull
- datascience fuzzy (3): fuzzy_merge_adaptive (rapidfuzz), words_to_dataset, remove_words_from_column
- datascience viz (2): plot_kde_2d, plot_heatmap_log
- infra (4): compress_pdf_ghostscript, render_table_page_pdfpages, add_header_logo, osm2pgsql_ingest
- pipelines (4): setup_geo_stack_docker, compute_centers_reachability, generate_isochrones_by_zone, count_points_per_zone
- types geo (4): LonLat, BBox, IsochroneRequest, Centro

Incluye:
- apps/footprint_geo_stack/ (PostGIS + Martin + Valhalla via docker-compose)
- 131/132 tests pasan (1 skip esperado: osm2pgsql en PATH)
- Issue tracker dev/issues/0052-footprint-aurgi-extraction.md
- Atribucion uniforme: source_repo internal:footprint_aurgi, source_license internal-aurgi
- Build con 9 agentes en paralelo (8 wave 1 + 1 wave 2 pipelines)

Tambien commitea trabajo previo no commiteado: aggregate_extraction_results, chunk_with_overlap, clean_pdf_text, merge_entity_aliases, extract_graph_gliner2, extract_relations_mrebel, extract_triples_spacy_es, gliner2/mrebel/marianmt/rebel/spacy_es load_model, parse_rebel_output, translate_es_to_en, issue 0050/0051.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-04 23:35:22 +02:00

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---
id: geometric_mean_py_datascience
name: geometric_mean
kind: function
lang: py
domain: datascience
version: "1.0.0"
purity: pure
signature: "def geometric_mean(values: list[float]) -> float"
description: "Geometric mean of positive elements via exp(mean(log(x))). Non-positive values are filtered out. Returns math.nan if no positives."
tags: [statistics, mean, geometric, distribution, lognormal]
uses_functions: []
uses_types: []
returns: []
returns_optional: false
error_type: ""
imports: [math, numpy]
example: |
from geometric_mean import geometric_mean
result = geometric_mean([1, 2, 4, 8]) # ~2.828 (2^1.5)
tested: true
tests:
- "test_geometric_mean_powers_of_two"
- "test_geometric_mean_filters_non_positive"
- "test_geometric_mean_empty_returns_nan"
- "test_geometric_mean_all_negative_returns_nan"
- "test_geometric_mean_single_positive"
test_file_path: "python/functions/datascience/tests/test_geometric_mean.py"
file_path: "python/functions/datascience/geometric_mean.py"
params:
- name: values
desc: "List of numeric values. Non-positive elements are silently ignored."
output: "Geometric mean as float, computed over positive elements only. Returns math.nan if there are no positive values."
source_repo: "internal:footprint_aurgi"
source_license: "internal-aurgi"
source_file: "aurgi_mapas/generar_pdf_reporte.py:126"
---
## Ejemplo
```python
from geometric_mean import geometric_mean
geometric_mean([1, 2, 4, 8]) # 2.828... (= 2^1.5)
geometric_mean([1, -2, 3]) # exp((log(1)+log(3))/2) — ignores -2
geometric_mean([]) # math.nan
geometric_mean([-1, -2]) # math.nan — no positives
```
## Notas
Apropiado para distribuciones lognormales o datos multiplicativos (precios, ratios, crecimientos). Equivalente a la raiz n-esima del producto pero numericamente mas estable via log-space.