---
name: rsi
kind: function
lang: go
domain: finance
version: "1.0.0"
purity: pure
signature: "func RSI(data []float64, period int) []float64"
description: "Calcula el Relative Strength Index (RSI) usando suavizado de Wilder."
tags: [finance, indicator, rsi, momentum]
uses_functions: []
uses_types: []
returns: []
returns_optional: false
error_type: ""
imports: []
tested: false
tests: []
test_file_path: ""
file_path: "functions/finance/rsi.go"
---

# rsi

Calcula el Relative Strength Index (RSI) con el metodo de suavizado de Wilder. Los primeros `period` elementos son 0. El RSI oscila entre 0 y 100.

## Ejemplo

```go
result := finance.RSI([]float64{44, 44.34, 44.09, 43.61, 44.33, 44.83, 45.10, 45.42, 45.84}, 5)
```