Need help with factorizing array of numbers
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hi there,
say you have an array of numbers x =[94 89 124 120 150] how can i find factors of this array, i mean break each number in the array to its primes. i know the function is factor(x). but it only applies to a scalar value not an array. i tried putting it on a loop
x =[94 89 124 120 150] ;
for i = 1:length(x)
facts_x(i) = factor(x(i))
end
but this i realized gives me an error because the loop runs only in the length of x the facts_x ends up bigger because factor answer is stored as an array. please help. thanks SN
1 Comment
Accepted Answer
Azzi Abdelmalek
on 26 Feb 2013
Edited: Azzi Abdelmalek
on 26 Feb 2013
You need to use a cell array to store the result for each number, because they are not the same length
x =[94 89 124 120 150] ;
out=arrayfun(@factor,x,'un',0)
out{:},
5 Comments
Jan
on 27 Feb 2013
@Azzi: Do you meant me with "don't add an asnwer as a comment"? Or did you meant the OP and "don't add a comment as an answer" instead?
I've added my code as comment, because it does exactly the same as your asnwer. Therefore this is nothing new.
Azzi Abdelmalek
on 27 Feb 2013
Jan, sorry for the confusion, I should have mentioned the name of the OP. I meant: don't add a comment as an answer.
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