MATLAB Function Reference

isvalid (timer)

Determine if timer object is valid

Syntax

• out = isvalid(obj)
  

Description

out=isvalid(obj) returns a logical array, out, that contains a 0 where the elements of obj are invalid timer objects and a 1 where the elements of obj are valid timer objects.

An invalid timer object is an object that has been deleted and cannot be reused. Use the clear command to remove an invalid timer object from the workspace.

Example

Create a valid timer object.

• t = timer;
  out = isvalid(t)
  out =
  
      1
  

Delete the timer object, hence making it invalid.

• delete(t)
  out1 = isvalid(t)
  out1 =
  
      0
  

See Also

timer, delete

isvalid

isvarname