convert double NaN to string NaN

Hi

I have a cell array with NaN as shown in the image. How can I convert NaN to string NaN meaning instead of of seeing NaN in the array, I want to see "NaN".

I have tried this: TC(cellfun(@(x) any(isnan(x)),TC,'UniformOutput',false)) = {"NaN"}; but no success.

Any help is appreciated.

Answer 1

[KSSV]

A = NaN(2,5) ; 
C = arrayfun(@num2str,A,'UniformOutput',false)

C = 2×5 cell array
    {'NaN'}    {'NaN'}    {'NaN'}    {'NaN'}    {'NaN'}
    {'NaN'}    {'NaN'}    {'NaN'}    {'NaN'}    {'NaN'}

[Daneisha Blair]

I've received this error when I tried your approach.

>> TC2= arrayfun(@num2str,TC,'UniformOutput',false);

Error using num2str

Input to num2str must be numeric.

[Daneisha Blair]

For clarification, TC is in the structure of:

TC = {["Mercury","Gemini", "Apollo"; ...

"Skylab", "Skylab B","ISS"], ...

["Mercury","Gemini";

"Skylab","Skylab B"]}

% Output array

TC = cellfun(@(x) nan(size(x,1),1) ,TC,'UniformOutput',false)

which created double NaN

However, I want it in string NaN, like this {'NaN'}

Hope this help.

[Daneisha Blair]

I got it work by looping and using this arrayfun(@num2str,A,'UniformOutput',false).

Thank you!

[Daneisha Blair]

Wait, how can I get it in string array instead of cell array, please?

[Daneisha Blair]

I got it :) . string(arrayfun(@num2str,A,'UniformOutput',false)).

Answer 2

[darova]

Try num2str

a = {nan 1 nan};
cellfun(@num2str,a,'UniformOutput',0)

ans = 1×2 cell array
    {'NaN'}    {'NaN'}

[Daneisha Blair]

This didn't give me quite what I was looking for.

For clarification, TC is in the structure of:

TC = {["Mercury","Gemini", "Apollo"; ...

"Skylab", "Skylab B","ISS"], ...

["Mercury","Gemini";

"Skylab","Skylab B"]}

% Output array

TC = cellfun(@(x) nan(size(x,1),1) ,TC,'UniformOutput',false)

which created double NaN

However, I want it in string NaN, like this {'NaN'}

Hope this help.