[R] 4 dimensional graphics

[Petr PIKAL]

Thank you

Basically I have a rectangular space (like an aquarium) in which I made 
some analysis. I can make

image(lat, long, value) for each height but what I dream about is to make 
something like scatterplot3d(lat, long, height) with points set according 
to a value.

Up to now i can do

scatterplot3d(sloupecn, radan, vrstvan, color=as.numeric(cut(value, c(0, 
100, 400, 1000))))

which will give you green and red points in upper right corner. I started 
to try to make cex.symbols scaled according to value too but up to now I 
did not manage to work correctly. 

in

scatterplot3d(sloupecn, radan, vrstvan, cex.symbols = value/max(value)+2, 
color=as.numeric(cut(value, c(0, 100, 400, 1000))))

the biggest points are at other places then I expected. 

here are the data

vrstvan sloupecn        radan   value
1       4       1       73.8
1       4       9       54.9
1       4       17      72
1       1       1       96
1       1       9       52.1
1       1       17      53.3
4       4       1       58.4
4       4       9       93.5
4       4       17      140.2
4       1       1       90.3
4       1       9       36.5
4       1       17      55.1
7       4       1       169.1
7       4       9       718
7       4       17      813
7       1       1       73.4
7       1       9       46.5
7       1       17      205

Petr
petr.pikal at precheza.cz

"hadley wickham" <h.wickham at gmail.com> napsal dne 10.01.2008 16:07:31:

> On Jan 10, 2008 8:36 AM, Petr PIKAL <petr.pikal at precheza.cz> wrote:
> > Dear all
> >
> > I want to display 4 dimensional space by some suitable way. I searched
> > CRAN and found miscellaneous 3 dim graphics packages which I maybe can
> > modify but anyway I am open to any hint how to efficiently display 
data
> > like:
> >
> > longitude, latitude, height, value
> 
> What exactly are you interested in?  I'd start with plots of:
> 
>  * long, lat, height
>  * long, lat, value
>  * height, value
> 
> to give you a feel for what is going on.
> 
> Hadley
> 
> 
> -- 
> http://had.co.nz/