Hi guys,
I'm new to both clojure and functional programming and as an exercise
in learning Clojure, I decided to write a naive bayes categorizer. I
have a piece of code wherein I have a doseq inside which i am calling
a function which returns a value. What I would like to do is have the
value returned by the function to be added to a particular binding
(variable), so that at the end of the doseq, I'll have a total sum of
all values returned. Right now im doing this by using def to rebind
the value. The exact code I'm using is:
(def prob-sum 0)
(doseq [cat cat-all]
(def prob-sum (+ prob-sum
(probability-of-category-given-document
cat tokens))))
I know that using def to rebind is not good practice and I should
probably be using ref. However, this executes only in a single thread,
so I'm not sure if it would be appropriate to use ref.
Also, I realize that I'm abusing the concept of data immutability, but
in this case I really need this to be mutable. However, I have a gut
feeling that I'm not really approaching this in the right way (as in
correct way to do it in a functional language), and I would really
appreciate it if someone could set me upon the right track.
Regards,
chaosprophet
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