Hello
I am interested in finding out the time between two points in a graph (x-axis is the time, y-axis is the quantity of interest). For testing my logic, I'm using a sinusoidal wave to see if I get the correct responses. In the sinusoidal wave defined below, I'm interested in calculating the starting and ending x-coordinate when the y-axis value is less than 0.4.
t= [0:0.1:2*pi];
a=sin(t);
figure;
h=plot(t,a);
for i=1:max(t)
y=get(h,'ydata');
if a < 0.4
start=get(h,'xdata');
if a > 0.4
fin=get(h,'xdata');
end
end
This is an infinite loop, which doesn't give any output. I'm not really familiar with matlab and am not able to figure out how to get the start and fin values above.
Any help is appreciated.
Thanks!
