# Average True Range

<mark style="color:red;">`atr(`</mark>[<mark style="color:blue;">`candles`</mark>](https://docs.origami.tech/function/functions/candles)<mark style="color:red;">`: List[[`</mark>[<mark style="color:blue;">`Candle`</mark>](https://docs.origami.tech/structures#candle)<mark style="color:red;">`]], period: int = 14) -> List[Decimal]`</mark>

## Average True Range (ATR)