Using save() and -ascii format to limit output numbers to 2 decimals

Hello All, I need help with save() command. here is the extract of my code:

save(fullfile(PathName,filename),'x','-ascii');

Where x is a column of 120 values upto 2 decimal points.

Now what I am getting with above code is 4.7300000e+01 which I want to limit to 47.30 only. I know they are one of same but I have another script which reads only 47.30 kind of format. So even though both are same I have to restrict it to 2 decimals only.

So is there any way to do that?

Answer 1

[Stephen23]

Method one: fprintf:

fnm = fullfile(PathName,filename);
fid = fopen(fnm,'wt');
fprintf(fid,'%.2f\n',x);
fclose(fid);

Method two: dlmwrite:

dlmwrite(fnm,x,'precision','%.2f')

[adi kul]

But main aim is to save the data under "x" in a file on a specific folder in a custom file format.

[Stephen23]

@adi kul: my code saves the data in x in a file in a specific folder, using a custom file format. Did you try it?

[adi kul]

Apologies! It worked! This is awesome. Thank you! I have another question on changing message box title when we use

 xlsread(fullfile(PathName,FileName),-1)

Do I need to ask a new question?

[Stephen23]

Neither of xlsread nor fullfile open any message box when functioning correctly, so I am not sure what you are asking about. Ask a new question.

[adi kul]

Please check this question:

https://in.mathworks.com/matlabcentral/answers/343722-how-to-change-default-message-box-when-using-xlsread-filename-1

[Jabbar moosavi]

I've same question ,the reference data has 3 columns " x,y and pixel values" but this code save the data under "x".I want all the values in the same columns .

so how can I do that ?

Answer 2

[Do Hieu Trinh]

Dear Stephen,

Do you know a trick which works for saving data into .m file using matlab.io.saveVariablesToScript?

Best regards,

Do Hieu.