I used PC to learn the structure and parameters of a BN (see attached screenshot).
The raw data contained time series of 4 temperature sensors in an air handling unit.
Now, I'd like to set evidence in the outdoor air temperature (ODA), which intuitively would be a temperature in Celsius degrees between -20 and 40. However, it appears that it's only possible to set evidence between -1 and 1.
So, is it possible to change the bounds? Or is there another way to set the evidence for the layperson?
Thanks for your time!
Is it possible to specify equation bounds when learning using PC?
Is it possible to specify equation bounds when learning using PC?
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Re: Is it possible to specify equation bounds when learning using PC?
The bounds can be edited after learning - simply enter -20 and 40 as lower and upper bound.
Re: Is it possible to specify equation bounds when learning using PC?
Thank you for the quick answer!
My bad, I had tried setting the bounds like that last night, but thought I did something wrong when I saw overflow/underflow warning messages. 😅
I see now from this post and the Autodiscretization help page, that this is mostly normal.
My bad, I had tried setting the bounds like that last night, but thought I did something wrong when I saw overflow/underflow warning messages. 😅
I see now from this post and the Autodiscretization help page, that this is mostly normal.
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- Site Admin
- Posts: 1441
- Joined: Mon Nov 26, 2007 5:51 pm
Re: Is it possible to specify equation bounds when learning using PC?
The default [-1, +1] bounds should be modified by the PC algorithm. It should be either an open interval (-inf,+inf), or values from the learning data, rounded or not.
I've added an item to our feature tracker, and we will make this modification before the next release.
I've added an item to our feature tracker, and we will make this modification before the next release.
Re: Is it possible to specify equation bounds when learning using PC?
That would be yet another great feature - thank you!