As it turns out, there was something wrong with the way that the column and
row names were set up when the wind frequency table was made.  As I
mentioned, the same data (all the data) was plotted 6 times around the
circle (rose plot).  The way I've resolved this is by writing the data to a
.csv file and bringing it back in and skipping the first row (column names):

Wind_table <- read.table("myTable.csv", skip=1, header = FALSE, sep = ",")

then deleting the first column (row names).

Wind_table <- Wind_table[,-1]

Then rename the column and row names and run rosavent....  and it works.

Thanks,
Kevin


On Sun, Apr 18, 2010 at 2:49 PM, Joshua Wiley <jwiley.psych@gmail.com>wrote:

> I am wondering if there is a pattern in the rest of your data.  I made
> a table based on the data you provided, using 0s for degrees 80-350,
> and it plots fine.  If your data only changed slightly from section to
> section (lets say by 4 or 5) it might be hard to tell that it is
> actually different on the graph.  You could also try
> rosavent(yourdata, fint=1) ## this just blows up the graph and might
> make it easier to see small differences.
>
> Josh
>
> On Sun, Apr 18, 2010 at 5:37 AM, Kevin Turner <turner.kw@gmail.com> wrote:
> > The package is climatol.
> >
> > The data I'm working with looks like the following
> >
> >            10      20      30      40     50     60     70..... 360
> > 0-10     159   241    386    495   599   821   874....153
> > 10-20     96   481    815  1223  1165  856   529......31
> > 20-30     77   387    640    740    341  104      4........5
> > 30-40     28   130    223    383      65     4       0........0
> > 40-50       6     15      30      64        2     0       0........0
> > 50-60       0       0        1        2        0     0       0........0
> >
> > Each value is the number of times that the specified wind speed (0-10,
> > 10-20....etc.) was coming from the corresponding angle (separated by
> > columns).
> >
> > For some reason, all of the data is plotted six times around the 360
> > degrees, so it looks like some kind of star.  The data was originally
> from
> > to vectors of wind speed and direction and was put into this table.  I'll
> > try it with other data sets to see if I can reproduce my problems.
> >
> > Thanks,
> > Kevin
> >
> >
> >
> > On Sun, Apr 18, 2010 at 1:29 AM, Joshua Wiley <jwiley.psych@gmail.com
> >wrote:
> >
> >> On Sat, Apr 17, 2010 at 8:04 PM, Kevin Turner <turner.kw@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]]
> >> >
> >> > ______________________________________________
> >> > R-help@r-project.org mailing list
> >> > https://stat.ethz.ch/mailman/listinfo/r-help
> >> > PLEASE do read the posting guide
> >> http://www.R-project.org/posting-guide.html
> >> > and provide commented, minimal, self-contained, reproducible code.
> >> >
> >>
> >>
> >>
> >> --
> >> Joshua Wiley
> >> Senior in Psychology
> >> University of California, Riverside
> >> http://www.joshuawiley.com/
> >>
> >
> >
> >
> > --
> > Kevin Turner
> > Department of Geography
> > and Environmental Studies
> > Wilfrid Laurier University
> > Waterloo, Ontario
> >
> >        [[alternative HTML version deleted]]
> >
> > ______________________________________________
> > R-help@r-project.org mailing list
> > https://stat.ethz.ch/mailman/listinfo/r-help
> > PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> > and provide commented, minimal, self-contained, reproducible code.
> >
>
>
>
> --
> Joshua Wiley
> Senior in Psychology
> University of California, Riverside
> http://www.joshuawiley.com/
>



-- 
Kevin Turner
Department of Geography
and Environmental Studies
Wilfrid Laurier University
Waterloo, Ontario

	[[alternative HTML version deleted]]

