[R] Help using order with data.frame

[Bert Gunter]

Indeed you are -- the syntax for selecting columns of a data frame (or
components from a list).

Advice: Read "An Introduction to R" or online tutorial of your choice
to learn proper syntax.


Cheers,
Bert

Bert Gunter
Genentech Nonclinical Biostatistics
(650) 467-7374

"Data is not information. Information is not knowledge. And knowledge
is certainly not wisdom."
H. Gilbert Welch




On Sat, Mar 15, 2014 at 9:21 PM, Jason Rupert <jasonkrupert at yahoo.com> wrote:
> Evidently, I'm overlooking something simple.  I'm trying to used order with data.frame.
>
>
> For example:
>
> t = data.frame(x = c(11,12,14), y = c(19,20,21), z = c(10,9,7))
> t[order(z), ]
> Error in order(z) : object 'z' not found
>
> Thank you for any insights and advice provided.
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>
>
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