This is a convenience function for producing a viewport with the common S-style plot layout -- i.e., a central plot region surrounded by margins given in terms of a number of lines of text.
plotViewport(margins=c(5.1, 4.1, 4.1, 2.1), ...)A numeric vector interpreted in the same way
as par(mar) in base graphics.
All other arguments will be passed to a call to
the viewport() function.
A grid viewport object.
viewport and
dataViewport.