Is the Current Graphics Device Interactive ?
Graphics Device for Bitmap Files via GhostScript
Extend a Numerical Range by a Small Percentage
Wait for a mouse or keyboard event from a graphics window
The R Graphics Devices and Support for Colours and Fonts
Compute Default mfrow From Number of Plots
Compute the Number of Classes for a Histogram
Auxiliary Function to Set/View Argument of postscript
3D to 2D Transformation for Perspective Plots