rasterVis
The rasterVis package complements the raster package,
providing a set of methods for enhanced visualization and
interaction. This package defines visualization methods with levelplot for quantitative data and categorical data, both for univariate and multivariate rasters.
It also includes several methods in the frame of the Exploratory Data Analysis approach: scatterplots with xyplot, histograms and density plots with histogram and densityplot, violin and boxplots with bwplot, and a matrix of scatterplots with splom.
On the other hand, this package is able to display vector fields using arrows, vectorplot, or with streamlines, streamplot.
rasterVis