trend2d(1gmt) on Linux
The text 4523856098b9, as Debian 9 (Stretch) shipped it.
Fit a [weighted] [robust] polynomial model for z = f(x,y) to xyz[w] data
The text 4523856098b9, as Debian 9 (Stretch) shipped it.
Fit a [weighted] [robust] polynomial model for z = f(x,y) to xyz[w] data