[R] Contents of R-help digest.-contouring

[Spencer Graves]

The reference to "Venerable and Ripley" reminds me that in the late 
1940s, George Box worked for Imperial Chemicals Industries, which 
appeared in at least one brochure I saw as "Empirical Chemicals 
Industries".  George invented response surface methods there, so the 
"typo" was not as inappropriate as one might otherwise think.

Enjoy, Spencer Graves

Duncan Murdoch wrote:
> On Mon, 21 Jul 2003 13:45:39 -0400, "john lewis"
> <john.lewis at sympatico.ca> wrote :
> 
> 
>>R- Users:
>>
>>Can someone indicate what I am during wrong? This is a script essentially from 
>>
>>Venerable & Ripley's text on interpolating a surface with loess function but I can not get it to run.
> 
> 
> That's Venables...
> 
> 
>>topo.lo <- predict(topo.loess, expand.grid(topo.mar), se=T)
>>
>>lo.1 <- as.data.frame(topo.lo)
>>
>>lo.2 <- as.matrix(lo.1$fit)
> 
> 
> The problem is here.  lo.2 ends up being a matrix with dimensions 4356
> by 1, because you didn't say what dimensions to use.  Try this
> instead:
> 
> lo.2 <- matrix(lo.1$fit, length(topo.mar$x), length(topo.mar$y))
> 
> 
> Duncan Murdoch
> 
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