random production firing

[Niels Taatgen]

Jim Davies wrote:

> I have 2 productions that I want to fire at random. That is, approximately
> 50% of the time p1 fires, and 50% of the time p2 fires.
>

1. make sure rational analysis is on:

(sgp :era t) ; put this somewhere at the start of your model

2. there is no noise on P itself, put on the total expected gain. Just give
it some value

(sgp :era t :egs 0.05)  ; put this somewhere at the start of your model

This will give you a 50% probability of each rule firing, if both productions
have the same expected gain (which they have if you do not change their
parameters or put  on parameters learning).

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Niels Taatgen
Technische Cognitiewetenschap/Cognitive science & engineering
Grote Kruisstraat 2/1, 9712 TS Groningen, Netherlands
050-3636435 / +31503636435
niels at tcw2.ppsw.rug.nl  http://tcw2.ppsw.rug.nl/~niels
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