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Re: how to check if this exists


From: Quentin Spencer
Subject: Re: how to check if this exists
Date: Fri, 03 Feb 2006 12:55:25 -0600
User-agent: Mozilla Thunderbird 1.0.7-1.1.fc4 (X11/20050929)

Corbin Champion wrote:

If I create a variable x and x has an element
x.name = "tom"
if I do exist('x') I get a value of 1....good, but
if I do exist('x.name') I get a value of 0 even though this exists.
Is this the intended behavior? Is there a different function I should use for this?

Yes and yes. See the example below:

octave:1> x.x=1;
octave:2> isfield(x,'x')
ans = 1
octave:3> isfield(x,'y')
ans = 0

-Quentin



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