Groups > comp.soft-sys.math.mathematica > #14989

Position[] bug or feature ?

From	roby <roby.nowak@gmail.com>
Newsgroups	comp.soft-sys.math.mathematica
Subject	Position[] bug or feature ?
Date	2013-06-24 02:50 +0000
Message-ID	<kq8c5l$6o9$1@smc.vnet.net> (permalink)
Organization	Time-Warner Telecom

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Dear Group

When trying to evaluate the following code the expected result is returned.
But strangly there is an error message generated.
The code should (and does) return the positions of all sublists with an even element at the second position.



Position[{{1, 2}, {2, 3}, {1, 4}}, _?(EvenQ[#[[2]]] &), {1}]

Part::partd: Part specification List[[2]] is longer than depth of object. >>

{{1}, {3}}



Any hints if this a bug or a feature ?

Regards Robert

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Position[] bug or feature ? roby <roby.nowak@gmail.com> - 2013-06-24 02:50 +0000
  Re: Position[] bug or feature ? roby <roby.nowak@gmail.com> - 2013-06-25 06:53 +0000
  Re: Position[] bug or feature ? stephen.p.luttrell@gmail.com - 2013-06-25 06:51 +0000

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