Message-ID: <28D29BC2-E237-4CFD-8490-03B5AB1C23E7@gmail.com>
Date: 2012-08-25T16:07:13Z
From: michael.weylandt at gmail.com (R. Michael Weylandt
Subject: extract vector elements of unknown range
In-Reply-To: <1345886617.37518.YahooMailNeo@web171402.mail.ir2.yahoo.com>
On Aug 25, 2012, at 4:23 AM, Sepp Tannhuber <sepp.tannhuber at yahoo.de> wrote:
> Hi,
>
> thanks for your quick answers! These solve my problem.
>
> Now I have another question. I think I can use
> head(y, -1)
> instead of
> y[-length(y)]
>
> Are there differences in terms of performance?
The latter is marginally more efficient. Take a look at head.matrix()
Cheers,
Michael
>
> Best regards
> Joseph
>
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