How can I replace every element of a matrix with a special character to hide the element

2 views (last 30 days)
I have a nxn matrix and want to hide the elements and replace them with a special character
Example
1 2 3
4 5 6
7 8 9
is now
* * *
* * *
* * *

Accepted Answer

Rick Rosson
Rick Rosson on 29 Nov 2015
x = magic(3);
y = repmat('*',size(x));
disp(y);

More Answers (2)

Rick Rosson
Rick Rosson on 27 Nov 2015
x = magic(3);
x(x<7) = NaN;
disp(x);

Image Analyst
Image Analyst on 27 Nov 2015
Try this, using fprintf():
m = [...
1 2 3
4 5 6
7 8 9]
[rows, columns] = size(m);
for row = 1 : rows
for col = 1 : columns
fprintf('* ');
end
fprintf('\n');
end
and this.

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