How to replace the empty cells in a cell array by a 4-bits string?

Hello,

How to replace the empty cells " [ ] " in the attached matrix to a 4-bits string we can convert the whole array matrix to double.

For example,

if we have thw following row:

[ '0001', '0101' , '1010', [ ], [ ], [ ], '1111']

it becomes:

[0,0,0,1,0,1,0,1,1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1]

Answer 1

[Akira Agata]

How about the following?

load('Key.mat');
idx = cellfun(@isempty,Key); % Find the indexes of empty cell
Key(idx) = {'0000'};         % Replace the empty cells with '0000'

[Sarah A]

Thank you :)

Answer 2

[Stephan]

load('Key.mat');
Key1 = Key(:);
Key1 = reshape(replace(string(char(Key1{:})),"    ","0000"),size(Key,1),size(Key,2));

results in a string array filing up all empty elements with "0000".

[Sarah A]

it is not working, I got this error:

Undefined function 'replace' for input arguments of type 'char'.

[Walter Roberson]

Which MATLAB version are you using? R2016a or earlier likely.