How to load a file

Hi,

To load a file, I always do this: load file.txt

But this time, my file looks like what I have pasted below.

‘load’ does not work.

How can I load a file so I can put the data into an array?

Thank you for your help.

Herve

/********************************/

The file

(6.278305337995641,-31.165930909567250)
              (1.758723282034028,-1.229391225298848)
         (1.133464180020400,-3.392317005428029E-001)
          (3.528019029863541,9.833493189283731E-001)
        (-1.589297342018588,-6.805368090065715E-001)
    (-5.740909803957738E-002,5.972384666809710E-001)
    (2.903057010297026E-001,-1.201455315950079E-001)
    (8.626581493421666E-001,-6.836608234777217E-002)
   (-1.805284473824767E-001,-5.614038990230759E-001)
              (2.126569179381342,-2.150085377308474)
…

Answer 1

[Laura Proctor]

The following code snippet will load your data into the matrix data:

fid = fopen('TestFile.txt');
M = textscan(fid,'(%f,%f)');
data = [ M{:,1} M{:,2} ];
fclose(fid);

[Hervé Chubaka Bagalwa]

Thanks. Let me try it out and get back to you.

[Hervé Chubaka Bagalwa]

Thank you for your answer

I did exactly what you did but, i got this error:

Invalid file identifier.

[Hervé Chubaka Bagalwa]

Some of the files look like this:

(-5.740909803957738E-002,5.972384666809710E-001)

I think that is the reason why i am getting errors.

[Image Analyst]

Make sure your file is in the same directory as your m-file, or else prepend the full folder name to your base file name. Here's an example:

% Read in a standard MATLAB gray scale demo image.

folder = fullfile(matlabroot, '\toolbox\images\imdemos');

baseFileName = 'cameraman.tif';

fullFileName = fullfile(folder, baseFileName);

% Get the full filename, with path prepended.

fullFileName = fullfile(folder, baseFileName);

if ~exist(fullFileName, 'file')

% Didn't find it there. Check the search path for it.

fullFileName = baseFileName; % No path this time.

if ~exist(fullFileName, 'file')

% Still didn't find it. Alert user.

errorMessage = sprintf('Error: %s does not exist.', fullFileName);

uiwait(warndlg(errorMessage));

return;

end

end

[Image Analyst]

Sorry, but comments don't allow for code formatting so it looks kind of messed up. - no indentations, etc.

Answer 2

[Kelly Kearney]

Textscan is probably your best bet here, assuming you want an n x 2 array of the paired data points. Try:

fid = fopen('file.txt');
data = textscan(fid, '(%f,%f)', 'collectoutput', true);
fclose(fid);
data = data{1};

[Hervé Chubaka Bagalwa]

Thanks. Let me try it out and get back to you.

[Hervé Chubaka Bagalwa]

Thank you for your answer

I did exactly what you did but, i got this error:

Invalid file identifier.

[Hervé Chubaka Bagalwa]

Some of the files look like this:

(-5.740909803957738E-002,5.972384666809710E-001)

I think that is the reason why i am getting errors.