Saving a .mat file in csv format

I have a .mat file and the data structure is as below.

Data =

struct with fields:

        axis1: [25626600×1 double]
        axis2: [25626600×1 double]
        axis3: [25626600×1 double]
      datenum: [25626600×1 double]
  sample_rate: 30
serial_number: 'MOS2D10171145'

I want this .mat file to be save as a csv file.

I tried this code but it gives me this error.

csvwrite('FileName.csv', Data);

Undefined function 'real' for input arguments of type 'struct'.

Error in dlmwrite (line 189)
                    str = sprintf('%.*g%+.*gi',precn,real(m(i,j)),precn,imag(m(i,j)));

Error in csvwrite (line 42)
dlmwrite(filename, m, ',', r, c);

[mbvoyager]

csvwrite does not support to write .mat files or struct type data into a csv file. It only supports numerical matrices.

So Data is a struct consisting of several fields with different data types (vectors, scala and string?) and Data is saved in a .mat file?

[Rik]

How exactly would you like your csv file to be? Can you show an example with 10 elements (instead of the 25626600)?

[Rik]

What exactly did you edit? And how does that answer our questions?

Answer 1

[Image Analyst]

Try creating a double array from your structure:

data = [Data.axis1(:), Data.axis2(:), Data.axis3(:), Data.datenum(:)];
writematrix(data, fullFileName);