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Array - Determine parameters (least number picked etc)

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Rich
Rich le 23 Juil 2013
Hi All, I have a couple questions for arrays I was hoping I could get help with.
I am making an array that is 2500,1 and the numbers are randomly generated
1) How do I determine the number that was drawn the least?
2) Determine how many times a range of numbers was drawn?
Thanks so much ahead of time
  1 commentaire
Rich
Rich le 23 Juil 2013
Modifié(e) : Rich le 23 Juil 2013
Thanks for the reply guys, what I ended up doing was generating another array based off the results, basically a 52,1 array that has the number of times each number was drawn
Using MAX, and MIN works great for that but I am having trouble with the range part of it.
What I tried to do was range=sum(results(lowrange:highrange))
but I get an error, any suggestions for that?
The error is that the matrix is too large
Thanks

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Réponses (2)

Andrei Bobrov
Andrei Bobrov le 23 Juil 2013
Modifié(e) : Andrei Bobrov le 23 Juil 2013
Use functions:
1. min;
2. unique and histc.

David Sanchez
David Sanchez le 23 Juil 2013
%Generate integer values from the uniform distribution on the set 1:10:
r = randi(10,2500,1); % 2500 randomly distributed numbers on the range 1:10
x=1:10;
n = hist(r,x); % histogram with value distribution
[minimum_apearance index]= min(n); % index will give the numbe appearing the least

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