“a” is a handle to the timer (a way of referring to the timer) It is not a way of knowing how long the timer has been running. You will need to store the start time somewhere and see how much time has elapsed.

Doug

Are the random numbers generated using the timer, saved in variable “a”?
I need to stop the timer when the random number being generated gets beyond 0.9. This helps me figure out how the timer works. I was wondering why the timer does not stop when random numbers go beyond 0.9?

Thanks.
Saeid

clear all
a=timer
set(a,'executionmode','fixedRate')
set(a,'timerfcn','disp(rand)')
start(a)

while (a&lt0.9)
  disp('Hello World!')
 end
 stop(a)

Sure, why not?

Doug

Great tutorial.

I was wondering if the random numbers generated could be saved in a variable so I could stop the timer if the value of the variable gets in a certain range.

if b<0.05
% b used to save random number as 1x1 array
stop(a)
end

As long as you put it in the TS object, MATLAB does not care if it came from a timer object originally.

Doug

Can we create and use a timeseries analysis of matlab from timer object. I am calling a function (in timer) which gives me some data upon execution. I want this data to be analysed via Timeseries.

Thank You,
Vicky

Doug

Great tutorial.

I’d like to interrupt an infinite loop with a timer.

Setting the ErrorFcn to ‘break;’, or ‘error(”Inf loop”)’ doesn’t do the trick. The error function only returns after I manually break the loop (Ctrl-C).

I attribute this to Matlab’s single-threadedness, and that it can’t actually interrupt what I’m doing.

You said in this tutorial that the timer runs ‘in the background’. That doesn’t seem to be the case. It only runs after what you’re doing has paused, or allowed something else to run.

Thoughts?

I am not sure how accurate of timing (down to ms?) you can really get in a non-real-time OS.

Doug