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Wed, 13 June 2012 00:44

dplatten
Messages: 32
Registered: December 2007

Member

The function N_ELEMENTS will tell you. If the result is zero then the variable doesn't exist:

N_ELEMENTS(x)

		Re: Define a variable By: dplatten on Wed, 13 June 2012 00:44
		Re: Define a variable By: hadi on Wed, 13 June 2012 00:55

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