八度：使用子文件夹中存储的文件名创建.csv文件

Question

I have multiple arrays with string data. All of them should be exported into a .csv file. The file should be saved in a subfolder. The file name is variable.

I used the code as follows:

fpath = ('./Subfolder/');
m_date = inputdlg('Date of measurement [yyyymmdd_exp]');
m_name = inputdlg('Characteristic name of the expteriment');
fformat = ('.csv');

fullstring = strcat(fpath, m_date,'_', m_name, fformat);
dlmwrite(fullstring,measurement); 

However, I get an error that FILE must be a filename string or numeric FID

What's the reason?

Best Andreas

Answer 1

What you are asking to do is fairly straightforward for Matlab or Octave. The first part is creating a file with a filename that changes. the best way to do this is by concatenating the strings to build the one you want.

You can use: fullstring = strcat('string1','string2')

Or specifically: filenameandpath = strcat('./Subfolder/FixedFileName_',fname)

note that because strings are pretty much just character arrays, you can also just use:

fullstring = ['string1','string2']

now, if you want to create CSV data, you'll first have to read in the file, possibly parse the data in some way, then save it. As Andy mentioned above you may just be able to use dlmwrite to create the output file. We'll need to see a sample of the string data to have an idea whether any more work would need to be done before dlmwrite could handle it.