How to print a text file in MATLAB?

Dear everyone,

Please help me to solve this problem. I have 2 array and a cell like this:

State=[1 2 3];

Angle=[25 20 13];

Name={'ABC-820' 'S815' 'EG813'};

I want to create a text file like this:

State Name Angle

1 ABC-820 25

2 S815 20

3 EG813 13

Can anyone help me to write a code to make that file?

Thank you so much!

Answer 1

[Geoff Hayes]

Phan - since you want to create a text file, then use fopen as

 fid = fopen('myData.txt','w');

where fid is the file descriptor. If it is positive, then you can write data to file

 if fid > 0

     % do stuff

     % close file
     fclose(fid);
 end

Since the file has been opened, once we have finished with it, we need to close it with fclose. That leaves the do stuff part of the above code - this is where you write out the data line by line

   % write the header (tab-delimited columns)
   fprintf(fid,'State\tName\tAngle\n');

   % write each row
   for k=1:length(State)
       fprintf(fid,'%d\t%s\t%d\n',State(k),Name{k},Angle(k));
   end

Put it together, and give it a go.

----------------------------

An alternative, if you have a more recent version of MATLAB, is to convert the data to a table and then just write the table to file with writetable

 tableData = table(State',Name',Angle','VariableNames',{'State','Name','Angle'})
 writetable(tableData,'myTableData.txt','Delimiter','\t');

Try either of the above options and see what happens!

[Phan]

Maybe there are some things wrong in the syntax. Matlab can not run the code you provided

[Geoff Hayes]

Phan - which example of code did you run, and what was the error? For the first example, the if block should look like

 if fid > 0
     % write the header (tab-delimited columns)
     fprintf(fid,'State\tName\tAngle\n');
     % write each row
     for k=1:length(State)
         fprintf(fid,'%d\t%s\t%d\n',State(k),Name{k},Angle(k));
     end

     % close file
     fclose(fid);
 end

I just ran both examples now, and the code worked fine for each given your inputs

 State=[1 2 3];
 Angle=[25 20 13];
 Name={'ABC-820' 'S815' 'EG813'};

[Phan]

Oh, I did it!

Thank you so so much!!!

[Geoff Hayes]

Glad that it worked!