Hi Sarah,

here is some of the data:

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3586L, 3586L, 3586L, 3586L, 3586L, 3586L, 3586L, 3586L, 3586L,
3586L, 3586L, 3586L, 3586L, 3586L, 3586L, 3586L, 3586L, 3586L,
3586L, 3586L, 3586L, 3586L, 3586L, 3586L, 3586L, 3586L, 3586L,
3586L, 3586L, 3586L, 3586L, 3586L, 3586L, 3586L, 3586L, 3588L,
3588L, 3588L, 3588L, 3588L, 3588L, 3588L, 3588L, 3588L, 3588L,
3588L, 3588L, 3588L, 3588L, 3588L, 3588L, 3588L, 3588L, 3588L,
3588L, 3588L, 3588L, 3588L, 3588L, 3588L, 3588L, 3588L, 3588L,
3588L, 3588L, 3588L, 3588L, 3588L, 3588L, 3588L, 3588L, 3588L,
3588L, 3588L, 3588L, 3588L, 3588L, 3588L, 3588L, 3588L, 3588L,
3590L, 3590L, 3590L, 3590L, 3590L, 3590L, 3590L, 3590L, 3590L,
3590L, 3590L, 3590L, 3590L, 3590L, 3590L, 3590L, 3590L, 3590L,
3590L, 3590L, 3590L, 3590L, 3590L, 3590L, 3590L, 3590L, 3590L,
3590L, 3590L, 3590L, 3590L, 3590L, 3590L, 3590L, 3590L)), .Names = c("X",
"Y", "Z"), row.names = c(NA, 500L), class = "data.frame")
and here is the code:

rgl.spheres(dat$X,dat$Z , dat$Y,1,color="red")
rgl.bbox()
# bivariate linear interpolation
# interp:
akima.li <- interp(dat$X, dat$Y, dat$Z,
                   xo=seq(min(dat$X), max(dat$X), length = 100),
                   yo=seq(min(dat$Y), max(dat$Y), length = 100),
duplicate="mean")
# interp surface:
rgl.surface(akima.li$X,akima.li$Y,akima.li$Z,color="green",alpha=c(0.5))
# interpp:
akima.p <- interpp(dat$X, dat$Y, dat$Z,
                   runif(200,min(dat$X),max(dat$X)),
                   runif(200,min(dat$Y),max(dat$Y)))
# interpp points:
rgl.points(akima.p$X,akima.p$Z , akima.p$Y,size=4,color="yellow")
# bivariate spline interpolation
# data
rgl.spheres(dat$X,dat$Z ,dat$Y,0.5,color="red")
rgl.bbox()
# bivariate cubic spline interpolation
# interp:
akima.si <- interp(dat$X, dat$Y, dat$Z,
                   xo=seq(min(dat$X), max(dat$X), length = 100),
                   yo=seq(min(dat$Y), max(dat$Y), length = 100),
                   linear = FALSE, extrap = TRUE)



On Tue, Dec 10, 2013 at 3:48 PM, Sarah Goslee <sarah.goslee@gmail.com>wrote:

> Hi,
>
> On Tue, Dec 10, 2013 at 10:42 AM, Shane Carey <careyshan@gmail.com> wrote:
> > Hi, I have since solved that problem,
>
> It would be useful to post the solution, for the archives, so that
> others with the same problem can benefit from your insight.
>
>
> > but now R keeps crashing. I have over 20,000 points. Can R handle that
> > amount?
>
> R can. Your computer may not be able to.
>
> But again, we don't have enough information to answer you, since that
> depends on OS, available RAM, etc.
>
> Sarah
>
> >
> > Cheers
> >
> >
> > On Tue, Dec 10, 2013 at 3:35 PM, Shane Carey <careyshan@gmail.com>
> wrote:
> >
> >> Hi,
> >>
> >> im trying to create a 3-D interpretation of a geological fault using
> >> the akima package. But my code fails below highlighted in red:
> >> Does anyone have any ideas why this is.
> >>
> >> Thanks
> >>
> >> dat<-read.delim("D:\\fault.txt",header=T,sep=",")
> >> library(rgl)
> >> # data
> >> rgl.spheres(dat$X,dat$Z , dat$Y,1,color="red")
> >> rgl.bbox()
> >> # bivariate linear interpolation
> >> # interp:
> >> akima.li <- interp(dat$X, dat$Y, dat$Z,
> >>                    xo=seq(min(dat$X), max(dat$X), length = 100),
> >>                    yo=seq(min(dat$Y), max(dat$Y), length = 100))
> >>
> >> This is my error:
> >> Error in interp.old(x, y, z, xo = xo, yo = yo, ncp = 0, extrap = extrap,
> >>  :
> >> duplicate data points: need to set 'duplicate = ..'
> >>
> >> # interp surface:
> >> rgl.surface(akima.li$X,akima.li$Y,akima.li
> $Z,color="green",alpha=c(0.5))
> >> # interpp:
> >> akima.p <- interpp(dat$X, dat$Y, dat$Z,
> >>                    runif(200,min(dat$X),max(dat$X)),
> >>                    runif(200,min(dat$Y),max(dat$Y)))
> >> # interpp points:
> >> rgl.points(akima.p$X,akima.p$Z , akima.p$Y,size=4,color="yellow")
> >> # bivariate spline interpolation
> >> # data
> >> rgl.spheres(dat$X,dat$Z ,dat$Y,0.5,color="red")
> >> rgl.bbox()
> >> # bivariate cubic spline interpolation
> >> # interp:
> >> akima.si <- interp(dat$X, dat$Y, dat$Z,
> >>                    xo=seq(min(dat$X), max(dat$X), length = 100),
> >>                    yo=seq(min(dat$Y), max(dat$Y), length = 100),
> >>                    linear = FALSE, extrap = TRUE)
> >>
>
>
> --
> Sarah Goslee
> http://www.functionaldiversity.org
>



-- 
Shane

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