Zoe,

If you use a Wind Rose diagram (e.g.,
http://rgm2.lab.nig.ac.jp/RGM2/func.php?rd_id=circular:wind rose), which
are available in several packages, you could plot tidal speed and
direction Wind Rose diagrams in a x-y plot to plot location. If you used
the lattice package, this could give you the 5-dimension (time) in each
panel. What I think you will need to pull this off is the R package
grImport — Google for examples of this, for instance, the paper by Paul
Murrell: http://www.stat.auckland.ac.nz/~paul/R/grImport/import.pdf — which
is very cool.

Tom



On Wed, Jun 20, 2012 at 10:14 AM, Greg Snow <538280@gmail.com> wrote:

> You can use the 'my.symbols' and 'ms.arrows' functions in the
> TeachingDemos package to plot arrows at given locations with specified
> angles, lengths, and colors.
>
> On Sat, Jun 16, 2012 at 5:16 AM, zoeita <zoe-allcock@live.co.uk> wrote:
> > Hi,
> >
> > I have had a look around the forums and I can't seem to find anything
> that
> > works with my data.  I have lats, longs, time, tidal speed and direction
> and
> > need to plot this in an xy plot to determine changes over time. contour
> and
> > cloud have been recommended to me as a way to do this but I can't figure
> out
> > how to get 5 dimensions into this.  I want lat and long as my x and y,
> time
> > as my z, direction as w and speed as different colours.  I imagine it's a
> > lot easier than I think it is - I am very new to R.  Could anyone please
> > help with a starting point for this?
> >
> > Thanks,
> >
> > Zoe
> >
> > --
> > View this message in context:
> http://r.789695.n4.nabble.com/Plotting-tidal-speed-and-direction-in-R-tp4633587.html
> > Sent from the R help mailing list archive at Nabble.com.
> >
> > ______________________________________________
> > 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.
>
>
>
> --
> Gregory (Greg) L. Snow Ph.D.
> 538280@gmail.com
>
> ______________________________________________
> 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.
>



-- 

Thomas E Adams
National Weather Service
Ohio River Forecast Center
1901 South State Route 134
Wilmington, OH 45177

EMAIL:	thomas.adams@noaa.gov
VOICE:	937-383-0528
FAX:	937-383-0033

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