---
name: group_by
kind: function
lang: go
domain: datascience
version: "1.0.0"
purity: pure
signature: "func GroupBy[T any, K comparable](xs []T, keyFn func(T) K) map[K][]T"
description: "Agrupa los elementos de un slice según una función clave, devolviendo un mapa de clave a slice de elementos."
tags: [datascience, group, aggregate, generic]
uses_functions: []
uses_types: []
returns: []
returns_optional: false
error_type: ""
imports: []
tested: false
tests: []
test_file_path: ""
file_path: "functions/datascience/group_by.go"
---