Use timer to run script every ten seconds

Question

Cary 2015-9-25

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/244950-use-timer-to-run-script-every-ten-seconds

评论： Stephen23 2015-9-25

I have a script that I want to execute automatically every ten seconds indefinitely until I tell it to stop. The script is called 'KelEdge'. I tried to figure out the code but I am having difficulty. Here is what I have:

function t = autoVIX()
t = timer;
t.StartFcn = @autoVIXstart;
t.TimerFcn = @runKelEdge;
t.StopFcn = @autoVIXCleanup;
t.Period = 10;
t.TasksToExecute = inf;
t.ExecutionMode = 'fixedRate';
end 
function autoVIXstart(KelEdge,~)
KelEdge;
end
function runKelEdge(KelEdge,~)
KelEdge;
end
function autoVIXCleanup(KelEdge,~)
disp('Stopping KelEdge.')
delete(KelEdge)
end

Thanks in advance for all the help.

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Stephen23 2015-9-25

It would be much better if you used fucntions instead of scripts. Functions have many advantages over scripts, e.g. encapsulation, abstraction, their own workspaces. It makes code easier to write and test when you use functions.

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Answer 1

Walter Roberson 2015-9-25

2
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https://ww2.mathworks.cn/matlabcentral/answers/244950-use-timer-to-run-script-every-ten-seconds#answer_193657

在 MATLAB Online 中打开

t = timer;
t.Period = 10;
t.TasksToExecute = inf;
t.ExecutionMode = 'fixedRate';
t.TimerFcn = @(src, event) run('KelEdge');
start(t)

I would recommend changing KelEdge into a function instead of a script. If you have it accept two arguments, then even if it ignores the arguments you could code as

t.TimeFcn = @KelEdge;

you cannot do this for a script because you cannot create a handle to a script, only a handle to a function.

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Cary 2015-9-25

编辑：Cary 2015-9-25

Thanks...I don't understand the inputs to the timer function, I don't have a src or event, just a script...also when I run this, it runs infinitely i.e. it never stops and I can't stop it. What did I do wrong?