Hi Ellison,

Thanks for pointing it out. Bad miss on my part.

Regards.

On Wed, May 6, 2009 at 7:55 PM, S Ellison <S.Ellison@lgc.co.uk> wrote:

> The problem is in the code.
>
> When you say
> >> mysummary<-tapply(myfactor,mydata,length)
> >> mysummary
>
> you have used mydata as a factor and myfactor as  the data.
>
> tapply has (correctly) used the ordered labels in the grouping factor
> (mydata) to label its output.
>
> If you did what you probably intended:
> tapply(mydata, myfactor,length)
>
> you'll get the order you expected.
>
>
>
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