I want to know the position of all the 1's in the matrix in form of rows and cols ??

For example;

A=[0 1 1 0;0 1 0 1]

how would i find that (1,2) , (1,3) , (2,2) , (2,4) are 1's ?

Answer 1

[Azzi Abdelmalek]

A=[0 1 1 0;0 1 0 1]
[jj,ii]=ind2sub(size(A'),find(A'==1))
out=[ii jj]

Answer 2

[Image Analyst]

How about simply using find():

[rows, columns] = find(A)

The results:

rows =
     1
     2
     1
     2
columns =
     2
     2
     3
     4

The rows and columns are synced up so that rows(k) and columns(k) refer to the row and column of the kth 1 in the array.