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Re: Identical elements

• To: mathgroup at smc.vnet.net
• Subject: [mg88418] Re: Identical elements
• From: Bill Rowe <readnews at sbcglobal.net>
• Date: Mon, 5 May 2008 06:11:12 -0400 (EDT)

On 5/3/08 at 6:17 AM, hussain.alqahtani at gmail.com (KFUPM) wrote:

>I have a list  and i need to test whether all the elements in the
>list are identical or no. What is the efficient way to do that? The
>output should be true if all elements are the same and False
>otherwise. One line command is preferred if possible.

Length[Union@list]==1

will return True if all elements of list are identical and False otherwise