How can I find the n smallest numbers in a two-dimensional array of m numbers?

For example, with this 2x5 matrix (m=10 and n=4), the expected answer is

(2,9), (1,5), (1,3), (2,10)
111  , 112,   145,   212

236 245 145 244 112
225 232 266 111 212

[Image Analyst]

http://www.mathworks.com/matlabcentral/answers/6200-tutorial-how-to-ask-a-question-on-answers-and-get-a-fast-answer

[Randy Souza]

@ankita: I tried to edit this to make the question more clear, please edit it yourself if I have distorted the meaning...

Answer 1

[Iman Ansari]

Hi.

n=4;
a=[236 245 145 244 112; 225 232 266 111 212];
[r c]=size(a);
a = a';
vector=a(:);
[B,IX] = sort(vector);
[fix((IX(1:n)-1)./c)+1 IX(1:n)]

[Image Analyst]

What is this?

[Iman Ansari]

Finding 4 Smallest values of matrix, but results in which rows and indexing in this order:

1 2 3 4 5
6 7 8 9 10