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export the data of the plot to .txt or .dat file

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I have the following code and I got a plot from the data. I wanted to export the data in the plot to .txt file or a .dat file
clear
[filename, pathname] = uigetfile('*.raw;*.prc', 'Pick raw or processed data file');
N=str2double(filename(5:6));
% load processed file
fid = fopen([pathname filename],'r','b');
A= fread(fid,inf,'*single')';
prcdata=reshape(A,N,[])';
plot((1:size(prcdata,1))./1.16E6, prcdata (:,6))
fclose(fid);
% code
end
I also tried the following
csvwrite(filename,M,'','6')
figure1 = figure;
axes1 = axes('Parent',figure1)
hold(axes1,'all');
plot((1:size(prcdata,1))./1.16E6, prcdata (:,6))
saveas(figure1,'finename.jpg') % here you save the figure
title(strrep(filename,'Time','Amplitude'))

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Accepted Answer

Walter Roberson
Walter Roberson on 13 Oct 2015
x = (1:size(prcdata,1))./1.16E6;
y = prcdata;
xy = [x(:), y(:)];
dlmwrite('YourOutputFile.txt', xy, 'delimiter', ',');

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Annonymous User
Annonymous User on 13 Oct 2015
thank you walter and Image analyst will test this out
Annonymous User
Annonymous User on 13 Oct 2015
This code worked it took almost an hour to analyse the data and export it.

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More Answers (1)

Image Analyst
Image Analyst on 12 Oct 2015
Well, neither of those two chunks of code does anything at all like writing the array to a text file! Try this:
filename = 'My Output file.txt'; % Whatever
fid = fopen(filename, 'wt');
if fid ~= -1
fprintf('%f\n', prcdata(:,6)); % Write out column 6 of prcdata.
fclose(fid);
else
message = sprintf('Could not open file %s for writing', filename);
uiwait(warndlg(message));
end

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Show 8 older comments
Annonymous User
Annonymous User on 13 Oct 2015
This code worked it took almost an hour to analyse the data and export it.
Image Analyst
Image Analyst on 13 Oct 2015
It should not take that long unless you have hundreds of gigabytes of data.
Annonymous User
Annonymous User on 28 Oct 2015
the data I had was around 6GB that too had 5 files each... so took almost 2 days to write the whole thing into a file thank you

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