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Determine if input is global variable



tf = isglobal(A) returns logical 1 (true) if A has been declared to be a global variable in the context from which isglobal is called, and logical 0 (false) otherwise.


isglobal is most commonly used in conjunction with conditional global declaration. An alternate approach is to use a pair of variables, one local and one declared global.

Instead of using

You can use

If no other workaround is possible, you can replace the command


See Also

global, isvarname, isa, is*

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