R help - Sep 2010 - invert order

Dear R-help list users,

I have a huge vector of numbers, how I can invert orden?

For example

x <- 1:10000000

I would like to obtain

x_r <- 10000000:1

Thanks,

Sebastian.

Sebastian writes:
> I have a huge vector of numbers, how I can invert orden?
> For example
> x <- 1:10000000
> I would like to obtain
> x_r <- 10000000:1
Well, 10000000:1 works for me.  If you need to rev()erse a pre-existing 
vector, try rev().

cur
-- 
Curt Seeliger, Data Ranger
Raytheon Information Services - Contractor to ORD
seeliger.curt@epa.gov
541/754-4638

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Hi,

Maybe
sort(x, decreasing=TRUE)
would do it

HTH,
Ivan

Le 9/1/2010 16:56, Sebastian Kruk a écrit :
> Dear R-help list users,
>
> I have a huge vector of numbers, how I can invert orden?
>
> For example
>
> x<- 1:10000000
>
> I would like to obtain
>
> x_r<- 10000000:1
>
> Thanks,
>
> Sebastian.
>
> ______________________________________________
> R-help@r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
-- 
Ivan CALANDRA
PhD Student
University of Hamburg
Biozentrum Grindel und Zoologisches Museum
Abt. Säugetiere
Martin-Luther-King-Platz 3
D-20146 Hamburg, GERMANY
+49(0)40 42838 6231
ivan.calandra@uni-hamburg.de

**********
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