sorting ascending descending? - R-help

Wolski

Fri, Jan 12, 2001 9:46 AM #

HI!
By xx[order(xx)] I can sort the array ascendin. How to sort them
descending.

eg.:

[1]   2   3   4  23 110

but i wont.
[1] 110  23   4   3   2

???
THX in advance
Eryk

--
Witold Eryk Wolski
Max Plank Institut fuer Molekulare Genetik
Ihnestr73 14195 Berlin
Germany
tel.:
Work 0049-30-84131426
http://www.molgen.mpg.de/~wolski


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Torsten Hothorn

Fri, Jan 12, 2001 10:37 AM #

rev(a[order(a)]

Torsten

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Brian Ripley

Fri, Jan 12, 2001 10:42 AM #

On Fri, 12 Jan 2001, Torsten Hothorn wrote:

Or a[rev(order(a))], which is useful if you want to sort arrays not
vectors (just add a comma or two).

Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272860 (secr)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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Ramon Diaz-Uriarte

Fri, Jan 12, 2001 10:54 AM #

On Fri, 12 Jan 2001, Witold Eryk Wolski wrote:

You can do:

a[order(-a)]


RamÃ³n

RamÃ³n DÃaz-Uriarte
Triana 47
28016 Madrid
Spain

email:ramon-diaz at teleline.es
Phone: +-34-918-513-966
       +-34-657-186-407	







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Ben Bolker

Fri, Jan 12, 2001 11:19 AM #

xx[rev(order(xx))]

On Fri, 12 Jan 2001, Witold Eryk Wolski wrote:

318 Carr Hall                                bolker at zoo.ufl.edu
Zoology Department, University of Florida    http://www.zoo.ufl.edu/bolker
Box 118525                                   (ph)  352-392-5697
Gainesville, FL 32611-8525                   (fax) 352-392-3704

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