[R] Syntax for order()

John Kane jrkrideau at inbox.com
Tue Mar 25 19:42:00 CET 2014


I "knew"  it was almost certainly something really stupid. 

Thanks very much.

John Kane
Kingston ON Canada


> -----Original Message-----
> From: sarah.goslee at gmail.com
> Sent: Tue, 25 Mar 2014 14:40:50 -0400
> To: jrkrideau at inbox.com
> Subject: Re: [R] Syntax for order()
> 
> dat1[order(dat1$val), ]
> 
> unless you used attach(dat1).
> 
> 
> Sarah
> 
> On Tue, Mar 25, 2014 at 2:36 PM, John Kane <jrkrideau at inbox.com> 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
>> 
> 
> --
> Sarah Goslee
> http://www.functionaldiversity.org

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