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Alessandro  
#1 Posted : Tuesday, March 12, 2013 5:15:48 PM(UTC)
Alessandro

Rank: Newbie

Groups: Registered, Registered Users, Unverified Users
Joined: 10/25/2012(UTC)
Posts: 7

The Bollinger Bands paramters help menu informs that you can set the price field to be used in the calculations, i.e.:

Price Field. Choose the price field (i.e., open, high, low, or close) to use when calculating Bollinger Bands.v

Trouble is when I access the parameter box there is no price field yet all others are there, eg

Time Periods.

Deviations.

Horizontal Shift.

Method.

So how do I set price? Also is it possible to set the number of "look back" periods that the moving average can be calcualted on, eg using a 20 period sma I want it to only use the last 100 days to calculate the 20 sma?

Thanks for any consideration.

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