rgl package scatterplot labels

Question

I seem to be having problems adding a title and axis labels in the rgl package. Here's a minimum working example:

> plot3d(x = c(1,2,3,1), y = c(2,3,1,4), z = c(2,3,4,5), type = 's', size =1)
> decorate3d(main = "My Plot")

I see neither labels (which should be set by default in decorate3d) nor My Plot.

Answer 1

decorate3d adds labels to an existing plot, so in your example

plot3d(x = c(1,2,3,1), y = c(2,3,1,4), z = c(2,3,4,5), type = 's', size =1)

creates a plot with xlab = 'c(1,2,3,1)', ylab = ' c(2,3,1,4)' etc

decorate3d then adds the default values (x,y, z) in addition to the original labels (as it is writing on the current plot).

If you want use decorate3d to label the axes, it would be safer to set them as '' in the original call to plot3d

eg

plot3d(x = c(1,2,3,1), y = c(2,3,1,4), z = c(2,3,4,5), type = 's', size =1,
       xlab = '', ylab = '', zlab = '')

## then 
decorate3d(main = "My Plot")
## will work as you wish.