R help - Mar 2013 - scatterplot3d with densCols ?

Hi,

I was trying to make a 3D plot using densCols. The documentation for
densCols doesn't look like it'll work for 3D. For example:

-----------------------------------------
library(scatterplot3d)

v1 <- rnorm(10000)
v2 <- rnorm(10000)
v3 <- rnorm(10000)

## 2D with denscols
mat1 <- cbind(v1,v2)
mcols1 <- densCols(mat1)
plot(mat1,col=mcols1)

mat <- cbind(v1,v2,v3)
mcols <- densCols(mat) ## No go?

## 3D version with no densCols parameter
scatterplot3d(mat,pch=16)

## gives error
scatterplot3d(mat,col=mcols,pch=16)

-----------------------------------------

Is there any workaround/modification to the densCols function that might
make this work?

thanks!

	[[alternative HTML version deleted]]

Hello,

According to ?scatterplot3d, the option is 'color', not 'col'.

scatterplot3d(mat,color=mcols,pch=16)

HTH,
Pascal


On 28/03/13 19:41, Brian Smith wrote:
> Hi,
>
> I was trying to make a 3D plot using densCols. The documentation for
> densCols doesn't look like it'll work for 3D. For example:
>
> -----------------------------------------
> library(scatterplot3d)
>
> v1 <- rnorm(10000)
> v2 <- rnorm(10000)
> v3 <- rnorm(10000)
>
> ## 2D with denscols
> mat1 <- cbind(v1,v2)
> mcols1 <- densCols(mat1)
> plot(mat1,col=mcols1)
>
> mat <- cbind(v1,v2,v3)
> mcols <- densCols(mat) ## No go?
>
> ## 3D version with no densCols parameter
> scatterplot3d(mat,pch=16)
>
> ## gives error
> scatterplot3d(mat,col=mcols,pch=16)
>
> -----------------------------------------
>
> Is there any workaround/modification to the densCols function that might
> make this work?
>
> thanks!
>
> 	[[alternative HTML version deleted]]
>
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