How to plot values over time?

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zephyr21
zephyr21 2016-6-21
评论： Walter Roberson 2016-6-22
I have an output that spits out 60 different values over the course of N=60 timesteps. How can I plot these values vs time? My current code is:
for n=1:N
plot(T(n),rate(4,10,n))
end
rate(4,10,n) indicates the value at i=4 and j=10 of that matrix

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回答（1 个）

Walter Roberson
Walter Roberson 2016-6-21
You could add a drawnow() or pause() after your plot() call.
You might also want to see animatedline() . It is also common to use waterfall plots with x being the time axis.
  2 个评论
zephyr21
zephyr21 2016-6-21
I keep getting a blank graph. rate(:,:,n) is an 11,14 matrix at timestep n. I specify rate(4,10,n) because there is only one number in that matrix, at (4,10)
Walter Roberson
Walter Roberson 2016-6-22
The default marker is empty for plot, and when you only plot one point at a time there will be no line to connect. You should specify a marker, like
plot(T(n), rate(4,10,n), '*')
However you should only do that if you want the position to be "animate". If you just want to draw all of them, then you should not use a loop and should instead use
plot(T(1:n), rate(4, 10, 1:N))

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