[R] how to sort
ONKELINX, Thierry
Thierry.ONKELINX at inbo.be
Thu Jun 18 09:51:38 CEST 2009
You need both the name of the dataframe and the variable in the
dataframe.
dfCorTFandPCA[order(dfCorTFandPCA$PC1)]
------------------------------------------------------------------------
----
ir. Thierry Onkelinx
Instituut voor natuur- en bosonderzoek / Research Institute for Nature
and Forest
Cel biometrie, methodologie en kwaliteitszorg / Section biometrics,
methodology and quality assurance
Gaverstraat 4
9500 Geraardsbergen
Belgium
tel. + 32 54/436 185
Thierry.Onkelinx at inbo.be
www.inbo.be
To call in the statistician after the experiment is done may be no more
than asking him to perform a post-mortem examination: he may be able to
say what the experiment died of.
~ Sir Ronald Aylmer Fisher
The plural of anecdote is not data.
~ Roger Brinner
The combination of some data and an aching desire for an answer does not
ensure that a reasonable answer can be extracted from a given body of
data.
~ John Tukey
-----Oorspronkelijk bericht-----
Van: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org]
Namens onyourmark
Verzonden: donderdag 18 juni 2009 5:17
Aan: r-help at r-project.org
Onderwerp: [R] how to sort
Hi. I have an object. I think it is a list.
> str(corTFandPCA)
num [1:922, 1:5] -0.0226 -0.0504 -0.0208 -0.0582 -0.0257 ...
- attr(*, "dimnames")=List of 2
..$ : chr [1:922] "abdomen.2" "abdomimal.3" "abdominal.4"
"aberration.5"
...
..$ : chr [1:5] "PC1" "PC2" "PC3" "PC4" ...
I want to order it according to PC1.
I tried this
dfCorTFandPCA=as.data.frame(corTFandPCA)
> orderedCorTFandPCA=dfCorTFandPCA[order(PC1)]
Error in order(PC1) : object 'PC1' not found
but get that error. Can someone tell me what the best way to do this is?
Thank you.
--
View this message in context:
http://www.nabble.com/how-to-sort-tp24085772p24085772.html
Sent from the R help mailing list archive at Nabble.com.
______________________________________________
R-help at 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.
Dit bericht en eventuele bijlagen geven enkel de visie van de schrijver weer
en binden het INBO onder geen enkel beding, zolang dit bericht niet bevestigd is
door een geldig ondertekend document. The views expressed in this message
and any annex are purely those of the writer and may not be regarded as stating
an official position of INBO, as long as the message is not confirmed by a duly
signed document.
More information about the R-help
mailing list