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David White

2001-Jun-29 15:55 UTC

[R] sorting a dataframe by a column

Hello,

Can anyone give me advice on sorting a dataframe by a given column?

Thanks,

D

S. David White
sdavidwhite at bigfoot.com
Columbus, Ohio

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Peter Dalgaard BSA

2001-Jun-29 17:06 UTC

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[R] sorting a dataframe by a column

David White <dwhite at ling.ohio-state.edu> writes:
> Hello,
> 
> Can anyone give me advice on sorting a dataframe by a given column?
> 
> Thanks,
> 
> D
myframe[order(myframe$mycolumn),]

-- 
   O__  ---- Peter Dalgaard             Blegdamsvej 3  
  c/ /''_ --- Dept. of Biostatistics     2200 Cph. N   
 (*) \(*) -- University of Copenhagen   Denmark      Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk)             FAX: (+45) 35327907
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Bartz, Kevin

2001-Jun-29 18:35 UTC

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[R] sorting a dataframe by a column

Define a key that maps the necessary changes to sort "theCol":

key <- sort.list(myFrame[["theCol"]]);

And then perform the sort on every column:

for (i in 1:length(myFrame)) myFrame[["theCol"]] <-
myFrame[["theCol"]][key];

If there''s a better way, let me know.

Kevin

-----Original Message-----
From: David White [mailto:dwhite at ling.ohio-state.edu]
Sent: Friday, June 29, 2001 11:56 AM
To: r-help at stat.math.ethz.ch
Subject: [R] sorting a dataframe by a column



Hello,

Can anyone give me advice on sorting a dataframe by a given column?

Thanks,

D

S. David White
sdavidwhite at bigfoot.com
Columbus, Ohio

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R help - Jun 2001 - sorting a dataframe by a column

[R] sorting a dataframe by a column

[R] sorting a dataframe by a column

[R] sorting a dataframe by a column