How to remove/replace NaN from multiple variables in workspace?

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harshpurohit11 2018-10-10

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https://ww2.mathworks.cn/matlabcentral/answers/423258-how-to-remove-replace-nan-from-multiple-variables-in-workspace

评论： Stephen23 2018-10-11

I have a number of variables in workspace: A = [NaN; NaN; NaN; 1; 2; 3..]; B = [NaN; NaN; NaN; NaN; 4; 27; 31..]; C = [NaN; NaN; 10; 21; 34..]; et cetra and I need to replace NaNs from double with a 0.

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madhan ravi 2018-10-11

See my answer below.

Stephen23 2018-10-11

"I have a number of variables in workspace: A... B... C ... et cetra and I need to replace NaNs from double with a 0."

Then you should redesign your code. Magically accessing variable names is one way that beginners force themselves into writing slow, complex, buggy code that is hard to debug. Read this to know more:

<https://www.mathworks.com/matlabcentral/answers/304528-tutorial-why-variables-should-not-be-named-dynamically-eval

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回答（1 个）

madhan ravi 2018-10-10

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编辑：madhan ravi 2018-10-10

在 MATLAB Online 中打开

An example:

>> A = [NaN; NaN; NaN; 1; 2; 3]
   A(isnan(A))=0
A =
     NaN
     NaN
     NaN
       1
       2
       3
A =
       0
       0
       0
       1
       2
       3
>>