[R] Plotting tidal speed and direction in R

Greg Snow
Wed, 20 Jun 2012 14:14:33 -0000

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 at 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
>
> --
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>
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--
Gregory (Greg) L. Snow Ph.D.
538280 at gmail.com