[R] 3D Plot

Jim Lemon jim at bitwrit.com.au
Sat Apr 24 14:01:56 CEST 2010

On 04/23/2010 10:51 PM, Ariane C. Böhm wrote:
> Hi guys of the R-Help-Team!<br /><br />First of all - you do a great job!<br
> />I've found a lot of your mails in the internet. So I thought it would be a
> good idea to ask you a question about R.<br /><br />R is new to me, so sorry,
> if the question is too simple :)<br /><br />I have a matrix.<br />I can make a
> 2D Heatmap of this matrix.<br /><br />My question:<br />Can I also make a 3D
> Heatmap of this matrix - so the third parameter should the value in the
> matrix.<br /><br />My first thought was :<br />> mat<- read.table(file
> ="AvgMatrix.mat")<br />> x<-as.matrix(mat)<br />> hv
> <- heatmap.2 (x, col=topo.colors, Colv = NA, Rowv = NA,
> main="AvgMatrix", xlab="Columns", ylab="Rows",
> key=TRUE, trace ="none")<br />But that is just a 2D heatmap.<br
> /><br />Thanks for your help<br /><br />Ariane<br /><br />
Hi Ariane,
The color2D.matplot function can almost do this, as there is an option 
to display the numeric values within the cells. Now with the small 
kludge of adding an extra argument:


and changing the following lines:


to this:

     if(is.null(x3)) xval<-x
     else xval<-x3

You may have a solution to your plotting problem.

Of course this will do nothing at all for your problem of sending HTML 
formatted messages.


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