Combo 2/20 EMA & Bandpass Filter

This is combo strategies for get a cumulative signal.

First strategy
This indicator plots 2/20 exponential moving average. For the Mov
Avg X 2/20 Indicator, the EMA bar will be painted when the Alert criteria is met.

Second strategy
The related article is copyrighted material from
Stocks & Commodities Mar 2010

WARNING:
- For purpose educate only
- This script to change bars colors.