On 03/25/2014 02:36 PM, John Kane wrote:
Has there been a change in the syntax for order() or am I just making some
stupid mistake here?
dat1 <-read.table(text="
name val
Alex 4
Jim 10
Fred 8
Julie 44
",sep="",header=TRUE,stringsAsFactors=FALSE)
dat1[order(val), ] # Gives Error in order(val) : object 'val' not found
dat1[order(dat1[,2]), ] # Works just fine.
John Kane
Kingston ON Canada
I don't think the behaviour has changed. I bet dat1[order(dat1$val), ]
works just fine.
--
Kevin E. Thorpe
Head of Biostatistics, Applied Health Research Centre (AHRC)
Li Ka Shing Knowledge Institute of St. Michael's
Assistant Professor, Dalla Lana School of Public Health
University of Toronto
email: kevin.tho...@utoronto.ca Tel: 416.864.5776 Fax: 416.864.3016
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