Pulu's Moving Averages This script allows you to customize sets of moving averages. It is configured default as 3 Vegas tunnels + an MA12. You can re-configure it for any of your moving average studies. At the first release, it supports up to 7 moving averages, many parameters, and eight types of algorithms:
ALMA, Arnaud Legoux Moving Average
EMA, Exponential Moving Average
RMA, Adjusted exponential moving average (aka Wilder’s EMA)
SMA, Simple Moving Average
SWMA, Symmetrically-Weighted Moving Average
VWAP, Volume-Weighted Average Price
VWMA, Volume-Weighted Moving Average
WMA, Weighted Moving Average
If you are looking for only 3 moving averages, there is another script "Pulu's 3 Moving Averages".