[R] Display common color scale on multiple scatter3D plots

[Luigi Marongiu]

Thank you!
I even bought a manual on this and such feature was not there. Case solved.
Regards,
Luigi

On Thu, Mar 14, 2019 at 11:36 PM Jim Lemon <drjimlemon using gmail.com> wrote:
>
> Hi Luigi,
> Upon careful reading of the help page, you can do it with scatter3D:
>
> scatter3D(X, Y, Z, col.var = Z, pch = 16, cex = 2,clim=c(0.5,3))
> scatter3D(X, Y, K, col.var = K, pch = 16, cex = 2,clim=c(0.5,3))
>
> Jim
>
> On Thu, Mar 14, 2019 at 9:32 PM Luigi Marongiu <marongiu.luigi using gmail.com> wrote:
> >
> > Dear all,
> > I am trying to display multivariate data using the library plot3D. I
> > have 3 variables that go on the axis and a fourth that I would like to
> > display as a color shade. However, the scale differs between plots
> > because the data I am using varies.
> > Would be possible to maintain a single scale so that the different
> > points will have the same shade on different plots? This would be like
> > giving the same axis scale on different plots.
> >
> > For example, I got the following:
> > >>>>
> > set.seed(50)
> > x = runif(10, 6, 18)
> > y = runif(10,  5,  7)
> > z = runif(10, 0.7, 3.14)
> > k = runif(10, 0.5, 1.2)
> > w = runif(10, min(z, k), max(z,k))
> > df = my.data <- data.frame(x, y, z, k, w)
> >
> > library("plot3D")
> > X = df$x
> > Y = df$y
> > Z = df$z
> > K = df$k
> > W = df$w
> > scatter3D(X, Y, Z, col.var = Z, pch = 16, cex = 2)
> > scatter3D(X, Y, K, col.var = K, pch = 16, cex = 2)
> > <<<
> >
> > In these plots the scale varies (0.6-0.9 in the first plot, 1.5-2.5 in
> > the second); I tried by creating a common scale with the variable W
> > which ranges from the min and max of the fourth levels represented by
> > the variables Z and K, but the result is the same:
> > scatter3D(X, Y, Z, col.var = W, pch = 16, cex = 2)
> > scatter3D(X, Y, K, col.var = W, pch = 16, cex = 2)
> >
> > Essentially, I would like the variables Z and K to be shaded according
> > to a common scale so that I could evaluate the shades of the two plots
> > directly.
> > Would that be possible?
> > Thank you.
> >
> > --
> > Best regards,
> > Luigi
> >
> > ______________________________________________
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> > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> > and provide commented, minimal, self-contained, reproducible code.



-- 
Best regards,
Luigi