[R] Irregular time series plot

[David Potts]

Hi List,

I am some what new to R-world.

I am trying to plot some vector data, each vector has a direction and
magnitude, the data is taken from an array of points, some of the coverage
area overlap, some do not.  Due nature of the grid there are some points
that lack data.

Can any body recommend an r-package to produce an image of the entire
grid, such that its possible to say the value at this point (x,y) is
direction A and magnitude B.

I can understand how to apply methods to scalar data, but its the vector
aspect of the data that is proving awkard.

Thanks in advance for any suggestions