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Strategies & Market Trends : Technical Analysis- Indicators & Systems
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To: TechTrader42 who wrote (1263)6/6/1997 7:33:00 AM
From: wolfgangl   of 3325
 
Brookelise,

I did not yet read all your posts on Bollinger systems.
What caught my eye is that you use mov(c,20,s)+std(c,20,s) intstead of
mov(c,20,s)+2*std(c,20,s), which is the usual formula. 2 times Standard deviation from mean is a confidence interval in which 98% of a sample fall into, if I recollect exactely. It is a common statistical tool. What is the rational to use only one times?

How do you define those "envelope lines". I did a full text search but
got tired after some time not finding it.
If you present that all in NJ I shall be patient until I hear it.

Wolfgang
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