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

From: bogdan romocea <br44114_at_yahoo.com>
Date: Sat 02 Apr 2005 - 00:07:05 EST


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@telecom.com.co] Sent: Thursday, March 31, 2005 10:23 PM
To: r-help@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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R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Sat Apr 02 02:50:11 2005

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