From help-request at octave dot org Mon Sep  5 15:00:38 2005
Subject: Re: Distinguishing between purely numerical data and alphanumeric  data
From: Bill Denney <denney at seas dot upenn dot edu>
To: Madhusudan Singh <singh dot madhusudan at gmail dot com>
cc: Geraint Paul Bevan <g dot bevan at eng dot gla dot ac dot uk>, help@octave.org
Date: Mon, 5 Sep 2005 15:56:24 -0400 (EDT)

On Mon, 5 Sep 2005, Madhusudan Singh wrote:

> How does one detect the presence of a blank string (either spaces or
> newlines) ?

Depending on how specific you want to get, you can do

x = '';
if isempty(x)
    blah
endif

or you can go all out and do

x = '';
if isempty(x) && ischar(x)
    blah
endif

Bill

-- 
"I think he ends up being killed or something, I don't remember. It's
not very crucial to the plot, all the kids were just cannon fodder
anyway."
   -- Rich "Lowtax" Kyanka, somethingawful.com



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