After importing multiple multicolumn txt files using "dlmread" function. Now i have 10 txt files each contains 12 columns, How can i go through all those 10 txt files and plot graphs for all subsequent 2 columns iteratively..
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for k = 1:length(theFiles) baseFileName = theFiles(k).name; fullFileName = fullfile(myFolder, baseFileName); fprintf(baseFileName,'%2d\n', k); %fullFileName = dlmread(fullFileName,'',1,0) READ=dlmread(fullFileName,'',1,0) end
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Adam Danz
2018-8-22
Your goal is clear, the code is helpful, but you never stated the problem you're facing.
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Julie
2018-8-22
myFolder = '/home/ali/IDT';
% Get a list of all files in the folder with the desired file name pattern.
theFiles = dir(fullfile(myFolder, '*.txt'));
for k = 1:length(theFiles)
baseFileName = theFiles(k).name;
fullFileName = fullfile(myFolder, baseFileName);
fprintf(baseFileName,'%2d\n', k);
%fullFileName = dlmread(fullFileName,'',1,0)
READ=dlmread(fullFileName,'',1,0)
for j=1:6
figure %replace with "hold on" if you want them all on the same graph
plot(READ(:,2*(j-1)+1),READ(:,2*(j-1)+2))
end
end
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Adam Danz
2018-8-22
(continuing from comments under the question).
There are some problems to fix in the current code before we move on to the question at hand.
First, you are reading in data from your 10 txt files but you are not saving the data. Instead, you are overwriting the data at each iteration of your for-loop. If (and only if) all of your data have the same number of columns, you can combine the data from all 10 files like this.
allData = [];
for k = 1:length(theFiles)
...
...
READ = dlmread(fullFileName,'',1,0);
allData(end+1:end+size(READ,1), :) = READ;
end
Second, your fprintf() command isn't correct. You probably want something like this:
fprintf('%s (%d)\n',baseFileName, k);
Once you've read in all your data and stored it in 'allData', you can plot columns like this
plot(allData(:,2)) %Plotting column 2
If you'd like to plot data from each file individually, put the plotting function within the for-loop. That would look something like this.
for k = 1:length(theFiles)
...
...
READ = dlmread(fullFileName,'',1,0);
plot(READ(:,2)); %plotting column 2
end
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