Shifting a plot in the horizontal direction
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Hello,
I would like to shift my plot horizontaly but here my problems :
First my code :
if true
% %plot of 3 different channels (in the same figure)
figure(3)
%subplot(121)
plot(ERP.bindata(7,:,1),'k');
hold on;
plot(ERP.bindata(10,:,1),'r');
hold on;
plot(ERP.bindata(17,:,1),'b');
title('Fz Cz Pz channel waveforms')
set(gca,'YDir','Reverse') %reversing the Y axis in order to have the negatives values above and the positives values below
axis ([-200,800,-12,12]) %setting of plot's boundary
xlabel('time (ms)')
ylabel('voltage (µV)')
end
I've glanced this subject below, but it didn't help because it gives tipes for plot(x,y) and my isn't configured like this. shift a plot in the vertical direction?
I've tried this :
if true
% plot(ERP.bindata(7,:,1) -200,'k');
plot(-200,ERP.bindata(7,:,1),'k');
end
But when I do this, my I have no plot on the appearing figure. I think it's because the data I've extracted are only ordinate like data but I have approximatively 1000 points for the abscissa.
采纳的回答
Jos (10584)
2016-2-8
The command plot(Y) plots the values of Y against their indices as x values. In general, however, it is a good idea to specify the x values directly. In doing so, you are much more in control. As an example:
Y = cumsum(rand(10,2)) % arbitrary data
x = 1:size(Y,1) ; % specify x values
plot(x, Y(:,1), 'bo-') ; hold on
plot(x+2, Y(:,2), 'rs-') ; hold off
xlim([0 15]) % set plot limits
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