MATLAB: How to draw a vertical line at certain x values on a plot

MATLABplot

I am creating a timecourse of some EEG data and I would like to create a vertical line that goes from the bottom to the top of the plot to indicate when the cluster ends and starts.

Best Answer

hold on;
plot([x x], ylim)
Or better yet, in case you have multiple sets of axes:
% if ax is the set of axes you are plotting to
hold(ax, 'on');
plot(ax, [x x], ylim(ax))
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