[R] Colours for sunflowerplot

Nicola Van Wilgen Nicola.VanWilgen at sanparks.org
Mon Dec 12 12:09:08 CET 2011

Hi Jim,

I think this will work well for what I need it for - thanks a lot!

I would still be interested (for interest sake) if anyone knows how to
get this to work using sunflower plot.

Thanks again,


-----Original Message-----
From: Jim Lemon [mailto:jim at bitwrit.com.au] 
Sent: 12 December 2011 11:18 AM
To: Nicola Van Wilgen
Cc: r-help at r-project.org; victoria at saeon.ac.za
Subject: Re: [R] Colours for sunflowerplot

On 12/12/2011 06:00 PM, Nicola Van Wilgen wrote:
> Dear fellow R users,
> I would like to draw a "sunflowerplot" because I have data (decade by
> month) that plots multiple times on the same x-y co-ordinates. Further
> would like to colour each of the points/sunflower leaves on the plot
> according to the group they belong to (i.e. which type of event each
> represents within that decade and month). I thought that this would be
> relatively straight forward - I have a series of x and y co-ords and a
> colour associated with each and I just use the column with the colours
> in it to colour-code the points using col = column.name when calling
> plot.
> However, the sunflower plot uses the function "xy.coords" to calculate
> the number of times that multiple points are plotted at the same
> coordinates and in so doing creates a new dataset (x.coords, y.coords
> and the number of times each is repeated) and this dataset no longer
> the colours associated with the individual points. The colours in a
> resultant plot merely plot in the original order.
> I would like to know whether there is a way of associating the correct
> colours with individual points that are now represented by the
> output.
Hi Nicola,
I couldn't figure out a way to make sunflowerplot use the original 
colors, but this might help you:



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