MATLAB: How to clear persistent variables

persistent variables

I am currently using a persistent variable within a function that I would like to clear at the end of the execution of a larger program. I am currently using "clear functions". This is causing some headaches during debugging since this clears my breakpoints as well. Is there a way to clear only the persistent variables? Better yet, is there a way to clear specific persistent variables?

Best Answer

you can use

clear functionName

and all the persistent vars in that function will be cleared (set to [])

Related Solutions

MATLAB: How to clear persistent variables without clearing breakpoints

The ability to clear persistent variables without clearing breakpoints does not exist in MATLAB. All the means to clear persistent data also clear the breakpoints.

As a workaround, you can clear all functions and then add the breakpoints back again by executing the following function:

function testBreakPoints
a = dbstatus;
clear functions
dbstop(a);
end

For this workaround to work, it is required that all files that contain breakpoints are on the MATLAB Search Path.

MATLAB: How to change an ODE parameter at a determinate time

For example,

ode45(@(t,y) MyFun(t,y,var1,var2,@fun4var3), ...)
Then in MyFun,
var3 = fun4var3(t)

and also,

function var3 = fun4var3(t)
  if t < YourKeyTime
    var3 = InitialValue;
  else
    var3 = AlternateValue;
  end
end

Best Answer

Related Solutions

MATLAB: How to clear persistent variables without clearing breakpoints

MATLAB: How to change an ODE parameter at a determinate time

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