Two questions about the cloud function in the lattice package

[Martin Eklund]

Hi,

I have two questions regarding the cloud function in the lattice  
package:

1) Is there a way to not print the surrounding frame (i.e. the square  
surrounding the entire plot)?

2) Is there a way to italicize the text displayed with the key argument?

Some sample code:

data(iris)
cloud(Sepal.Length~Petal.Length*Petal.Width,data=iris,
groups=Species,screen=list(z=20,x=-70), col=c("red","blue","green"),  
pch=c(20,20,20),
perspective=FALSE,
key=list(title="IrisData",x=.05,y=.95,corner=c(0,1),
border=TRUE,
points=list(alpha=c(1,1,1), cex=c(0.8,0.8,0.8),  
col=c("red","blue","green"), fill=c("#CCFFFF","#FFCCFF","#CCFFCC"),  
font=c(1,1,1), pch=c(20,20,20)),
text=list(c("setosa","versicolor","virginica"))))

Neither setting border=F nor changing font=c(1,1,1) to font=c(3,3,3)  
seem to do anything (as far as I can tell), which was how I thought  
that I could remove the framing border and italicize the text in the  
figure legend.

Does anyone have any pointers as to how to achieve what I would like  
to do?

Thank you very much!

Martin.

 > sessionInfo()
R version 2.9.0 (2009-04-17)
i386-apple-darwin8.11.1

locale:
sv_SE.ISO8859-1/sv_SE.ISO8859-1/C/C/sv_SE.ISO8859-1/sv_SE.ISO8859-1

attached base packages:
[1] grid      splines   stats     graphics  grDevices utils     datasets
[8] methods   base

other attached packages:
  [1] rgl_0.84           lme4_0.999375-28   Matrix_0.999375-27  
ROCR_1.0-2
  [5] gplots_2.7.1       caTools_1.9        bitops_1.0-4.1      
gdata_2.4.2
  [9] gtools_2.6.1       rjags_1.0.3-8      coda_0.13-4        
lattice_0.17-25
[13] penalized_0.9-23   survival_2.35-4

loaded via a namespace (and not attached):
[1] tcltk_2.9.0 tools_2.9.0

========================================
Martin Eklund
PhD Student
Department of Pharmaceutical Biosciences
Uppsala University, Sweden
Ph: [phone]
========================================





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[David Winsemius]

On Jul 3, 2009, at 1:02 PM, Martin Eklund wrote:

> data(iris)
> cloud(Sepal.Length~Petal.Length*Petal.Width,data=iris,
> groups=Species,screen=list(z=20,x=-70), col=c("red","blue","green"),
> pch=c(20,20,20),

#try adding
par.box=list(col="white"),

> perspective=FALSE,
> key=list(title="IrisData",x=.05,y=.95,corner=c(0,1),
> border=TRUE,
> points=list(alpha=c(1,1,1), cex=c(0.8,0.8,0.8),
> col=c("red","blue","green"), fill=c("#CCFFFF","#FFCCFF","#CCFFCC"),
> font=c(1,1,1), pch=c(20,20,20)),
> text=list(c("setosa","versicolor","virginica"))))

David Winsemius, MD
Heritage Laboratories
West Hartford, CT

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[Deepayan Sarkar]

On Fri, Jul 3, 2009 at 10:02 AM, Martin
Eklund<[hidden email]> wrote:
> Hi,
>
> I have two questions regarding the cloud function in the lattice
> package:
>
> 1) Is there a way to not print the surrounding frame (i.e. the square
> surrounding the entire plot)?

There is an example in the cloud help page that shows you how.

> 2) Is there a way to italicize the text displayed with the key argument?

Once you properly indent your code, it becomes clear that you 'font='
specification is an element of 'key$points', and so does not affect
how 'key$text' is shown:

cloud(Sepal.Length~Petal.Length*Petal.Width,data=iris,
      groups=Species,screen=list(z=20,x=-70), col=c("red","blue","green"),
      pch=c(20,20,20),
      perspective=FALSE,
      key=list(title="IrisData",x=.05,y=.95,corner=c(0,1),
               border=TRUE,
               points=list(alpha=c(1,1,1), cex=c(0.8,0.8,0.8),
                           col=c("red","blue","green"),
                           fill=c("#CCFFFF","#FFCCFF","#CCFFCC"),
                           font=c(1,1,1), pch=c(20,20,20)),
               text=list(c("setosa","versicolor","virginica"))))

You can either move the font specification to 'key$text', or move it
one level up directly as key$font:

cloud(Sepal.Length~Petal.Length*Petal.Width,data=iris,
      groups=Species,screen=list(z=20,x=-70), col=c("red","blue","green"),
      pch=c(20,20,20),
      perspective=FALSE,
      key=list(title="IrisData",x=.05,y=.95,corner=c(0,1),
               border=TRUE,
               font=c(3, 3, 3),
               points=list(alpha=c(1,1,1), cex=c(0.8,0.8,0.8),
                           col=c("red","blue","green"),
                           fill=c("#CCFFFF","#FFCCFF","#CCFFCC"),
                           pch=c(20,20,20)),
               text=list(c("setosa","versicolor","virginica"))))

-Deepayan

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