[R] plot is not keeping the order of variable

[Ista Zahn]

Hi Or,
I can't know for sure what your problem is without an example, but the
first thing I would do is check to make sure that your labels are
stored as an ordered factor (and that the order is correct). See
?factor for details.

Best,
Ista

On Sun, Feb 21, 2010 at 10:57 AM, Or Duek <orduek at gmail.com> wrote:
> Hi,
> I created a simple data frame with one factor and one numerical variable.
> The factor was actually a vector of names of techniques to trimm reaction
> time data.
> I want to create a plot that shows the value of F test for every trimming
> method.
> So the data frame has its trim factor (who has those labels
> "mean","2500","2000","1500","1000","log","inverse","1SD","2SD")
> and the numerical variable of the data frame has the F values for each one
> of those trimming method.
> When I ask R to plot it, it doesn't keep the order of the trimm verctor
> correctly and the plot confuses the order so the most left one will be 1500
> and then 1SD etc.
> The values are correct but it is important for me to keep it in the same
> order I built it.
> How can I do it?
> Thank you very much,
> Or D.
>
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>
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-- 
Ista Zahn
Graduate student
University of Rochester
Department of Clinical and Social Psychology
http://yourpsyche.org