[R] fields package question

[Eric Berger]

Since you don't provide lambda, rh or qext it is impossible to reproduce
what you are seeing.
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On Tue, Dec 25, 2018 at 4:13 AM M P <mzp3769 using gmail.com> wrote:

> Hello,
> I used commands below to obtain a surface, can plot it and all looks as
> expected.
> How do I evaluate values at new point. I tried as below but that produces
> errors.
> Thanks for suggestions/help.
>
> x <- log(lambda)
> y <- rh
> z <- qext[,,2]
>
> grid.l <- list(abcissa=x,ordinate=y)
> xg <- make.surface.grid(grid.l)
> out.p <- as.surface(xg,z)
> plot.surface(out.p,type="p")
>
> tried:
> grid_new.l <- list(abcissa=c(-15.0,-10.),ordinate=y)
> xg_new <- make.surface.grid(grid_new.l)
>
> out_new.p <- predict.surface(out.p,xg_new)
>
> results in this prompt:
> predict.surface is now the function predictSurface>
>
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>
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