CAPE (Shiller PE) Ratio

Calculating the Shiller PE Ratio ( aka cyclically adjusted price to earnings ratio). The calculation is similar to the traditional PE ratio, however uses the simple average of the earnings over past 5 years (default is 5, can choose different) adjusted for inflation (default is the Australian CPI index however a different index can be used in the input).
Open-source script

In true TradingView spirit, the author of this script has published it open-source, so traders can understand and verify it. Cheers to the author! You may use it for free, but reuse of this code in a publication is governed by House Rules. You can favorite it to use it on a chart.

Want to use this script on a chart?