| PaulEarley |
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Gold User, Member, TeleChart
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| Friday, August 19, 2005 |
| Saturday, July 29, 2006 7:09:05 AM |
5
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Thanks for the input. I worked through the equations carefully and adapted them slightly to get what I need. I have enjoyed this discussion, because it made me dig into the mathmatics more.
Thanks to all
Paul Earley
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I know I am on this thread on a totally different level (although I have appreciated trying to recall my statistics). When I use either formula, I get a value of about 27.6 for a test on a stock that had an upper BB at about 87.4 on the day under consideration.
Am I misunderstanding the use of the equation? I was trying to scan for stocks that close above their upper BB "yesterday".
Paul Earley
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I ensured that it was calculating against ALL STOCKS. But the formula does not seem to calculate TRUE for stocks that closed above BB. The "Test" also does not accurately depict a close above the upper BB.
Could you cross check it on your system if you have the time? I appreciate all the help.
Paul
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Jim and Bruce:
Thanks for all the great help. I am trying to refine my short selections.
When I apply Jim's formula to ALL stocks, I get zero items returned, despite the fact that when I review stocks I can see many closes > upper BB. Any thoughts as to what I am doing worng? (The formula tests out TRUE for IBM).
Sorry to be such a newbie. I program for a living but can't quite get this PCF thing.
Paul Earley
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Bruce:
Does this mean that to write a Boolean PCF that is true if a stock closes yesterday higher than the upper Bollinger band, it would read:
c1 > AVGC21+2*SQR(((C-AVGC21)^2 +(C1-AVGC21)^2 +(C2-AVGC21)^2 +(C3-AVGC21)^2 +(C4-AVGC21)^2 +(C5-AVGC21)^2 +(C6-AVGC21)^2 +(C7-AVGC21)^2 +(C8-AVGC21)^2 +(C9-AVGC21)^2 +(C10-AVGC21)^2 +(C11-AVGC21)^2 +(C12-AVGC21)^2 +(C13-AVGC21)^2 +(C14-AVGC21)^2 +(C15-AVGC21)^2 +(C16-AVGC21)^2 +(C17-AVGC21)^2 +(C18-AVGC21)^2 +(C19-AVGC21)^2 +(C20-AVGC21)^2)/20)
Paul Earley
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