Histogram chart getting cut when using package plot3D

Question

I'm trying to plot a simple histogram using hist3D() from plot3D package using the following code:

library(tidyverse)
library(plot3D)
data(iris)
iris=as.tibble(iris)

x=c(1,2)
y=x
z=matrix(rnorm(4,sd=0.5,mean=1),ncol=2,nrow=2)

pmat<-hist3D(x,y,
       z,
       border="black",
       axes=TRUE,
       expand=0.4,
       theta=40,phi=30,
       zmin=-1,
       margin=c(10,10),
       mar=c(10, 1, 0, 2),
       ticktype = "detailed",col="green",box=TRUE)

But the histogram get cut at the bottom:

So, I'm looking for a way to extends the width or the height of the canvas for hist3D().

Answer 1

You can use par(xpd = NA) before the hist3D call to allow your full device region to be used for plotting. This might not be enough space; if not, set the margins to be really large as well. For example,

par(xpd = NA, mar = c(10,10,10,10))
hist3D(x,y,
   z,
   border="black",
   axes=TRUE,
   expand=0.4,
   theta=40,phi=30,
   zmin=-1,
   margin=c(20,20),
   mar=c(10, 1, 0, 2),
   ticktype = "detailed",col="green",box=TRUE)

produces this for me:

It's pretty ugly, but that's to be expected for a 3D histogram :-).