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 />
3D Plot
3 messages · Ariane C. Böhm, Duncan Murdoch, Jim Lemon
On 23/04/2010 8:51 AM, Ariane C. B?hm 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 />
If you can, please turn off the HTML formatting in your email: it makes it quite hard to read. I don't really know what you mean by a 3D heatmap: can you point to any examples of such figures online? You might be thinking of something like persp gives; try example(persp) (or example(persp3d) in the rgl package). Duncan Murdoch
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On 04/23/2010 10:51 PM, Ariane C. B?hm 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:
x3=NULL
and changing the following lines:
if(show.values)
text(sort(rep((1:xdim[2])-0.5,xdim[1])),
rep(seq(xdim[1]-0.5,0,by=-1),xdim[2]),
round(x,show.values),col=vcol,cex=vcex)
}
to this:
if(show.values)
if(is.null(x3)) xval<-x
else xval<-x3
text(sort(rep((1:xdim[2])-0.5,xdim[1])),
rep(seq(xdim[1]-0.5,0,by=-1),xdim[2]),
round(xval,show.values),col=vcol,cex=vcex)
}
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.
Jim