I searched for this and found that with {grid} there are ways to rotate an image, and that for some plots you can play with their rotation (for example plot(x,y) instead of plot(y,x)).
However, I want to know if there is a generic method to rotate a plot in R (one that would work for ANY plot generated in base graphics) ?
you could export the graphic, read it back in, and display it rotated as a rasterGrob, say, (or a rasterImage after rotating the matrix, or a grImport grob if you want vector paths)
plot(1:10, rnorm(10))
library(grid)
cap <- grid.cap()
grid.newpage()
grid.raster(cap, vp=viewport(angle=30))
The new gridGraphics package may now be a better alternative.
Note: this doesn't seem to work with Rstudio's graphics device, presumably they haven't implemented grid.cap.
Spinning 3D Scatterplots
You can also create an interactive 3D scatterplot using the plot3D(x, y, z) function in the rgl package. It creates a spinning 3D scatterplot that can be rotated with the mouse. The first three arguments are the x, y, and z numeric vectors representing points. col= and size= control the color and size of the points respectively.
# Spinning 3d Scatterplot
library(rgl)
plot3d(wt, disp, mpg, col="red", size=3)