Creating a matrix within a matrix
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I'm having trouble on how to create an MxN matrix will all zeros and in that MxN matrix I want the the first column, first row, last row, and last column to be zeros while the rest of the matrix is all different numbers, with possible values as 0 zeros as well. An example is below,
0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 1 1 0 1 0 1 1 1 1 1 0 0 0
0 0 1 1 0 1 0 0 0 1 1 1 1 0
0 1 0 1 1 1 1 0 1 0 1 0 1 0
0 1 0 0 1 1 1 1 1 1 1 1 1 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0
Really the only values that the middle section can have is one or zero but the outsides have to all be zeros.
3 Comments
Accepted Answer
Matt J
on 21 Feb 2013
Edited: Matt J
on 21 Feb 2013
If you're saying you have a given matrix A and want to set the edges to zero,
A([1,end],[1,end])=0;
2 Comments
Matt J
on 21 Feb 2013
Use randi() to generate random zeros and ones everywhere. Then use the code I showed you to set the boundaries to zero.
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