R help - Sep 2009 - Bubble Plot

Hello, 

 I am using the bubble plot and have been able to overlay two different data
sets on the same graphic successfully. I would like to do the following and
cannot:

1) suppress the zero values such that there is no representation of them on my
plot (i.e., the "zeroes" show up as the smallest dot size, and I
can't change this)

2) Give values to y or x axes with values, and labels

My script looks as such:

coordinates(data) = ~y + x
a1 = bubble(data, "Alive", zero.print = ".",maxsize = 5.0, 
	key.entries = 4*(1:6),col=c(0,3))
a2 = bubble(handcore, "Dead", maxsize = 5.0, main = "",
	key.entries =   5*(0:10),col=c(0,4))

print(b1, more = TRUE)
print(b2, more = FALSE)


Thanks in advance for your help. 

mw

Marion Wittmann, Ph.D.
Tahoe Environmental Research Center
University of California Davis

From looking at the code for bubble(), it doesn't appear there's any 
way to force special treatment of selected values.

However, a simple work around would be to simply exclude the zero 
values from the plot(s) by subsetting your data creating a1 and a2. 
If you really want *no* representation, you're done. If you want them 
represented with the smallest dot size, then add them in afterwards 
with plot(), xyplot(), or spplot(), depending.

Or, you could make a personal copy of bubble() [renamed, of course], 
and modify it to handle zeros in a special manner. That doesn't look 
too hard to do.

-Don

At 6:27 PM -0700 9/27/09, Marion Wittmann wrote:
>Hello,
>
>  I am using the bubble plot and have been able to overlay two 
>different data sets on the same graphic successfully. I would like 
>to do the following and cannot:
>
>1) suppress the zero values such that there is no representation of 
>them on my plot (i.e., the "zeroes" show up as the smallest dot 
>size, and I can't change this)
>
>2) Give values to y or x axes with values, and labels
>
>My script looks as such:
>
>coordinates(data) = ~y + x
>a1 = bubble(data, "Alive", zero.print = ".",maxsize =
5.0,
>	key.entries = 4*(1:6),col=c(0,3))
>a2 = bubble(handcore, "Dead", maxsize = 5.0, main = "",
>	key.entries =   5*(0:10),col=c(0,4))
>
>print(b1, more = TRUE)
>print(b2, more = FALSE)
>
>
>Thanks in advance for your help.
>
>mw
>
>Marion Wittmann, Ph.D.
>Tahoe Environmental Research Center
>University of California Davis
>
>______________________________________________
>R-help at 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.

-- 
--------------------------------------
Don MacQueen
Environmental Protection Department
Lawrence Livermore National Laboratory
Livermore, CA, USA
925-423-1062