Replace all instances of a value with random number
4 views (last 30 days)
Show older comments
I am currently trying to replace all instances of the value 1 in an array with a different random number.
For example, if I have
A = [1 0 1 0;
0 1 0 0;
1 0 0 0;
1 1 0 1];
then I want a simple piece of code to quickly get something like:
A = 0.7144 0 0.1217 0;
0 0.9840 0 0;
0.5931 0 0 0;
0.2695 0.4320 0 0.9305];
I have tried using A(A==1)=rand but that filled in all of the 1s with th same random number.
I know this would be really easy to do using for loops but I am keen to avoid this because the A array will get quite large and end up being a drag on the performance of the overall script.
0 Comments
Accepted Answer
More Answers (0)
See Also
Categories
Find more on Creating and Concatenating Matrices in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!