go-talib

go-talib

A pure Go port of TA-Lib

Install

Install the package with:

go get github.com/markcheno/go-talib

Import it with:

import "github.com/markcheno/go-talib"

and use talib as the package name inside the code.

Example

package main

import (
	"fmt"
	"github.com/markcheno/go-quote"
	"github.com/markcheno/go-talib"
)

func main() {
	spy, _ := quote.NewQuoteFromTiingo("spy", "2016-01-01", "2016-04-01", quote.Daily, true)
	fmt.Print(spy.CSV())
	rsi2 := talib.Rsi(spy.Close, 2)
	fmt.Println(rsi2)
}

Every indicator takes one or more []float64 price series (plus parameters) and returns a []float64 (or a tuple of them) the same length as the input. The leading “lookback” region that cannot be computed is zero-filled.

Inputs that are too short for the requested period, or an invalid (non-positive) period, return a zero-filled slice of the correct length rather than panicking.

Development

Tests compare every indicator against the reference Python TA-Lib, so they need a python with numpy and TA-Lib available. A justfile provisions that interpreter with uv automatically:

just test              # set up the venv (first run) and run the full suite
just test-one TestRsi  # run a single test or pattern
just bench MidP        # run benchmarks

just setup creates a project-local .venv (via uv) with numpy + TA-Lib; the other recipes put it on PATH so the test harness’s python resolves to it. Run just with no arguments to list all recipes.

License

MIT License - see LICENSE for more details

Contributors

• Markcheno