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Strategies & Market Trends : NeuroStock -- Ignore unavailable to you. Want to Upgrade?


To: Bill Scoggin who wrote (705)2/25/1999 9:10:00 AM
From: Jay Hartzok  Read Replies (2) | Respond to of 805
 
<I read the posts on the Yahoo site...it appears there is some perception by some of the people there that a weight exists for every input days input data. That is simply not the case>

Some of the members are confused.

< the Forget button should indeed work.>

It does work somewhat. But it doesn't cause the net to forget completely, like it should.

<But the conception that the sliding window is causing certain coefficients to suddenly see the wrong values applied >

Good question for Mark. This type of stuff is his baby.

Hopfully by this weekend 2.3 will be available and all of this can go away permanently. Crossing my fingers.

Jay



To: Bill Scoggin who wrote (705)2/25/1999 10:38:00 AM
From: CatLady  Read Replies (1) | Respond to of 805
 
I have a comment on one point you made,

" But the
conception that the sliding window is causing certain coefficients to suddenly see
the wrong values applied to them just doesn't hold up. The same data (ie, closing
price, etc) will be input to these weights exactly the same way every iteration."

I am starting to believe that there could be an error in the way the stock and related price arrays are fed into NS. That is, the starting and ending dates of the data may not be matched up properly. This is just speculation on my part, but it fits my observation that sometimes nets' scattergraphs go badly "out of tune" with the addition of just a few days data. Also, this may occur only if the data array contains more or less than the maximum allowed days of data, this could explain the difference in behavior I was seeing between the commercial and shareware versions, with their different max days allowed.

CL