LispForum

As I said I am working on ACT-UP not ACT-R that is why you will see that the code in ACT-R is different from ACT-UP. ACT-UP code is more dependent upon Lisp as compared to ACT-R which has productions and chunks. Anyways thanks gugamilare, your suggestion really helped. I included that in my code and...

Thanks for the reply ! I am new to Lisp and I am guessing the problem lies in undefined variables, can you tell me how should I come over that problem? and ACT-UP is a cognitive architecture similar to ACT-R; I am not sure if you can find documentation on that.

Hi, I am new to Common lisp and I am developing a model for ACT-UP. It involves making chunks that can be learned and then they are retrieved to solve a problem. Anyways my problem lies with this lisp error I keep on getting; my code goes something like this - (load "act-up.lisp") (require...