How to plot the difference between two graphs..

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rounak
rounak 2013-2-15
hi everyone.. i am doing my project on comparing two ECG signals and narrowing down the abnormalities in the another. I am having many difficulties in proceeding with this project. I am generating a normal and abnormal ecgs using ecg .txt files. I ahve done many projects in image processing and i am have even done many projects in converting an image into binaries and subtracting them.But in these case i am unable to proceed any further . And i need all the help in the wotld since i have no team in these project.Thank you in advance
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Shashank Prasanna
Shashank Prasanna 2013-2-15
what have you tried so far? any sample code you have written you can share? My understanding is that you want to plot the difference of two ECG signals, is that right? Can you clarify what you are trying to do?

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Rick Rosson
Rick Rosson 2013-2-17
编辑：Rick Rosson 2013-2-17
figure;
subplot(3,1,1);
plot(t,x);
subplot(3,1,2);
plot(t,y);
subplot(3,1,3);
plot(t,x-y);

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