[R] a R function for sort a data frame.

[bogdan romocea]

dfr <- data.frame(sample(1:50,10),sample(1:50,10))
colnames(dfr) <- c("a","b")
dfr <- dfr[order(dfr$a),]
dfr <- dfr[order(-dfr$a),]



-----Original Message-----
From: Mario Morales [mailto:malfonso at telecom.com.co]
Sent: Thursday, March 31, 2005 10:23 PM
To: r-help at stat.math.ethz.ch
Subject: [R] a R function for sort a data frame.


Is there a R function for sort a data frame by a variable ?

I know sort a vector, but I don't know sort a data frame by a
column. Can you help me ?

the sort() function don't  work with data frame.

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