How to write a scan for PPO(12.26.9) line's slope (linear regression: 20)?

fnlin

Can someone help me to write a scan for PPO(12.26.9) line's slope (linear regression: 20) when it is crossing zero line (above or below).
Note: PPO line is actually similar to MACD(12.26.9) line. See attached screenshot.

markd

Here's a link that explains how to do it in general, including Slope:

https://support.stockcharts.com/doku.php?id=scans:advanced_scan_syntax:overlay_scans

So, in your case, the second term inside the Slope function parentheses would be PPO Line.

The crossing operator is "x". The first term always "crosses above" the second term. So if you want "crosses below", reverse the terms.

If you get stuck, post what you have and we will take a look.