[amibroker] Seasonal Index Indicator

["pmxgs" <pmxgs@xxxxxxxxxx>]

Hi,

 I'm reading an article about seasonal influences on prices and I'm 
trying to see if I can build a seasonal indicator which examines past 
prices and displays a curve with the seasonal tendencies. 
 I think Larry Williams also uses a similar indicator.
The article I'm reading just shows the charts, but doesn't say 
anything about the formulas/techniques used to construct this.
Can someone point me to some place where I can find information on how 
to construct this kinf of indicator? Which approach should I use, etc.
 
thanks 
 


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