How to convert string cell array to int and NaN in Matlab?

Question

I have a string cell array that contains a mix of numbers and None values. I want to convert the None into NaN and numbers into int.

x = {'23','3','None'}
new_x = {23,3,NaN}

ThomasIsCoding · Accepted Answer · 2021-03-25 22:48:17Z

4

You can try cellfun with str2double, e.g.,

>> cellfun(@str2double,x,"UniformOutput", false)
ans =
{
  [1,1] = 23
  [1,2] = 3
  [1,3] = NaN
}

or another option (thank @Luis Mendo)

>> num2cell(str2double(x))
ans =
{
  [1,1] = 23
  [1,2] = 3
  [1,3] = NaN
}

answered Mar 25, 2021 at 22:10

ThomasIsCoding

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1 Comment

@ThomasIsCoding Ah, I hadn't noticed that the result has to be a cell array