convert a time series into a real time animated plot

I am trying, with no success to display a plot of the attached timeseries in a way that it shows like if it was a real-time plotting.

Any help?

Thanks in advance

Answer 1

[Star Strider]

Try something like this —

LD = load('timeseries.mat');
time2 = LD.time2;
Time = time2.Time;
Data = time2.Data;
DataRange = [min(Data), max(Data)];
TimeRange = [min(Time), max(Time)];

figure
hold on
for k = 1:numel(Time)-1
    plot(Time(k:k+1), Data(k:k+1), '-b')
    axis([TimeRange DataRange])
    grid
    pause(0.0001)
end
hold off

Make appropriate changes to get the desired result.

.

[Marc Elmeua]

Thanks everyone for your help. All the scripts work perfectly, yet I find this the most efficient.

PS: if someone has the same problem, maybe this helps: I was writing similar scripts (with drawnow) to the ones proposed in this thread, but I was executing them on a Livescript, hence they were not working properly.

[Star Strider]

@Marc Elmeua — Thank you!

Answer 2

[Voss]

Here's one way:

load('timeseries.mat')
figure();
my_line = line();
for ii = 1:numel(time2.Time)
    set(my_line,'XData',time2.Time(1:ii),'YData',time2.Data(1:ii));
    drawnow();
end

Alternatively, you can use an animatedline.

Answer 3

[Walter Roberson]

Times = time2.Time;
Data = time2.Data;
N = 10;   %at a time -- one at a time is very slow
nsamp = length(Times);
h = animatedline();
for K = 1 : N : nsamp
    idx = K : min(K+N-1,  nsamp);
    addpoints(h, Times(idx), Data(idx));
    drawnow();
end