[R] rosavent problem

Joshua Wiley jwiley.psych at gmail.com
Sun Apr 18 07:29:56 CEST 2010


On Sat, Apr 17, 2010 at 8:04 PM, Kevin Turner <turner.kw at gmail.com> wrote:
> I have a frequency table that I am trying to plot on a rose diagram using
> rosavent.  I've set the table up by using this line:
>
> Wind_freq_speed <- t(table(cut(Wind_Dir_vec, 0:36), cut(Wind_Speed_vec,
> seq(0, to=60, by=10))))

We do not have this data...

>
> It produces the following table layout, which is consistent with the
> rosavent example (windfreq.dat).

When I call rosavent(windfreq.dat), it plots fine.  It would help if
you could provide some sample data that reproduces your problem.

For anyone else replying (David), the package is "climatol".

--
Josh


>
>              10   20   30   40   50   60   70... 360
> 0-10
> 10-20
> 20-30
> 30-40
> 40-50
> 50-60
>
> However, when I use the rosavent command (i.e. rosavent(Wind_freq_speed)),
> it produces a rose diagram with my data plotted 6 times around the 360
> degrees.  I also get the following error:
>
> Error in legend(-fmaxi - 2 * fint, fmaxi, fill = col, legend = attr(frec,  :
> 'legend' is of length 0
>
> Can anyone help me with this?
>
> Thanks.
>
> --
> Kevin Turner
> Department of Geography
> and Environmental Studies
> Wilfrid Laurier University
> Waterloo, Ontario
>
>        [[alternative HTML version deleted]]
>
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>



-- 
Joshua Wiley
Senior in Psychology
University of California, Riverside
http://www.joshuawiley.com/



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