# Technical Studies Reference

### Normalized Average True Range

This study calculates and displays a normalized version of the Average True Range. See that study for an explanation of the notation used here.

We denote the Normalized Average True Range at Index $$t$$ as $$\overline{TR}^{(Norm)}_t$$, and we compute it for $$t \geq n - 1$$ as follows.

$$\displaystyle{\overline{TR}^{(Norm)}_t(n) = \frac{100\space\overline{TR}_t(n)}{C_t}}$$

This study only functions properly on a Historical Daily chart. A Historical Daily chart can be opened with File >> Find Symbol >> [select symbol] >> Open Historical Chart.

Once you add this study to a Historical Daily chart, the study can be overlaid to an Intraday chart by using the Study/Price Overlay study.