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How do I erase following data?

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I want to erase following data when data goes down under 28.
For example,
If I have this matrix
36 33 31 29 30 27 31 33 24,
I want to make the matrix into
36 33 31 29 30 NaN NaN NaN NaN.
--> when I first met a number under 28, following datas are erased like this.
Thanks.

Accepted Answer

Walter Roberson
Walter Roberson on 9 Mar 2021
x(find(x<28,1):end) = nan ;
or
x(~cumprod(x>=28)) = nan;
  2 Comments
HyoJae Lee
HyoJae Lee on 9 Mar 2021
Thanks for helping.
This is the one that I want to find.
Appreciated!

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More Answers (1)

Mehmed Saad
Mehmed Saad on 9 Mar 2021
you can use find but not recommended
x = [36 33 31 29 30 27 31 33 24];
x(find(x<28,1):end) = nan
x =
36 33 31 29 30 NaN NaN NaN NaN

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