\graphing witth multiple functions
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Shubham Gupta
on 2 Oct 2019
Edited: Shubham Gupta
on 2 Oct 2019
Try :
a = gca;
hold on
plot(a.XLim,[560, 560],'m--') % plots horizontal line at y = 560
To find the intersection point at y = 560 with the function data ('ydata' for example below)
indx = find((ydata-560).*([ydata(1),ydata(1:end-1)]-560)<0); % finds index corresponding to intersection points
num_of_intersection = length(indx)
xintersect = xdata(indx)
Let me know if there is any doubt
1 Comment
Shubham Gupta
on 3 Oct 2019
Edited: Shubham Gupta
on 3 Oct 2019
I am sorry, I forgot to mention that I assumed ydata to be a row vector. So, can you please try to define ydata as a row vector before finding indeces for the intersection? Use:
ydata = Plength(:,3)';
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