Plotting points on a graph every 15 minutes

I am currently plotting points on a graph every hour which is within a while loop, but I am trying to adjust that so the points are plotted every 15 minutes.

This is what my original code looks like:

contraction(icount, 1)=newtime;

contraction(icount, 2)=radius;

icount = icount +1;

end

...

figure

plot(contraction(:,1),contraction(:,2)/contraction(1,2),'-o');

axis([0 100 0 1]);

save data.mat contraction

The newtime is the hour time.

And so I tried multiple ways to adjust it to 15 minutes but none of them have worked. I was sure this following code would fix the problem but it still isn't working. Here is the code:

for(c=newtime:+0.025:newtime+1)

contraction(icount, 1)=c;

contraction(icount, 2)=radius;

end

contraction(icount, 1)=newtime;

contraction(icount, 2)=radius;

icount = icount +1;

end

...

figure

plot(contraction(:,1),contraction(:,2)/contraction(1,2),'-o');

axis([0 100 0 1]);

save data.mat contraction

Can anyone help me solve this?

Answer 1

[Sulaymon Eshkabilov]

You had better use timer class:

https://www.mathworks.com/help/matlab/ref/timer-class.html