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checking if variable is defined [message #24625]

Wed, 11 April 2001 08:47

Dominik[1]
Messages: 46
Registered: April 2001

Member

Helle there,

I would like to plot a variable, but only if it is existing. When the
Variable is undefined, nothing should happen. So I am searching for an
expression for the if statement. Does anybody know an expression like:
if ( vaiable_name existing) then...

Thanks

Dominik

--
_____________________________
Dominik Paul
dpaul@ukl.uni-freiburg.de
Universit�tsklinikum Freiburg
Abt. PET/Nuklearmedizin

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[Message index]

		checking if variable is defined By: Dominik[1] on Wed, 11 April 2001 08:47
		Re: checking if variable is defined By: Bernard Puc on Thu, 12 April 2001 05:19
		Re: checking if variable is defined By: davidf on Wed, 11 April 2001 09:59

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