Dear R-Listers, I have spatial data on an equidistant rectangular grid, similar to topographic data. I know that there are quite a few R-packages or base functions that provide nice iso-contours plot, but I don't want a plot, just the smoothed isocontour line of ONE level (e.g. 10 mm).
Data sets are large, so it would be preferable if the availability of regular grid data could be exploited, and the fact that I only need ONE isocontour line. Polynomial fits are not adequate, but loess works nicely for the plots. Akima/interp might be a little too general, and if I remember Brian Ripley's comments correctly, the coefficients are "only for internal use". Can someone suggest me a package? Dieter Menne ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help
