[R] xyz-contour plot (irregular grid)

[David Winsemius]

On Nov 21, 2013, at 8:35 PM, ivo welch wrote:

> Dear R users:  before I try to undertake my own rewrite, has anyone already
> written a contour function that does not require a regularly spaced grid,
> preferably plot.contour(x,y,z,...)?
> 
> (it would be nice if it were based on loess() and plot()?  further
> annotations, changes, etc., would then be easier.)

The akima function in the package by the same name provides that facility.

-- 

David Winsemius
Alameda, CA, USA