Moving Average Ribbon

This is an extension of the Madrid Moving Average Ribbon public script to allow for different kinds of moving averages (the original allows only exponential and simple). Possible entries in the MA Type argument field are:

• sma (simple moving average)
  
• ema (exponential moving average)
  
• wma (weighted moving average)
  
• trima (triangular moving average)
  
• zlema (zero-lag exponential moving average)
  
• dema (double exponential moving average)
  
• tema (triple exponential moving average)
  
• hma (hull moving average)
  

If the argument given by the user does not match anything from the above list, it will default to ema.