Hi David,
Thanks for the suggestion - I changed pts1 to pts, but I still got the same
error as before. Do you know what else I'm doing wrong?
Thanks,
Megan
PS. New code is:
wireframe(z ~ y*x, gridd, drape = TRUE, colorkey= TRUE,
scales = list(arrows = FALSE),
pts = pts1,
panel.3d.wireframe =
function(x, y, z,xlim, ylim, zlim, xlim.scaled, ylim.scaled,
zlim.scaled, pts, ...)
{
panel.3dwire(x = x, y = y, z = z,
xlim = c(-4, 0),
ylim = c(0, 40),
zlim = c(-160, 0),
xlim.scaled = c(-0.5, 0.5),
ylim.scaled = c(-0.5, 0.5),
zlim.scaled = c(-0.5, 0.5),
...)
xx <- xlim.scaled[1] + diff(xlim.scaled) * (pts$x - xlim[1]) /
diff(xlim)
yy <- ylim.scaled[1] + diff(ylim.scaled) * (pts$y - ylim[1]) /
diff(ylim)
zz <- zlim.scaled[1] + diff(zlim.scaled) * (pts$z - zlim[1]) /
diff(zlim)
panel.3dscatter(x = xx,
y = yy,
z = zz,
xlim = xlim,
ylim = ylim,
zlim = zlim,
xlim.scaled = xlim.scaled,
ylim.scaled = ylim.scaled,
zlim.scaled = zlim.scaled,
...)
})
On Mon, Oct 24, 2011 at 12:04 PM, David Winsemius <dwinsem...@comcast.net>wrote:
>
> On Oct 24, 2011, at 1:23 PM, Megan Bartlett wrote:
>
> Hi,
>>
>> I'm trying to follow the suggestions given by Deepayan Sarkar in this
>> message:
>>
>> http://tolstoy.newcastle.edu.**au/R/help/05/11/16135.html<http://tolstoy.newcastle.edu.au/R/help/05/11/16135.html>
>>
>> to plot 3-D points on a wireframe plot. The problem is that I keep getting
>> a
>> partly formed plot- with the colored lattice visible but no axis labels or
>> additional points- with the error message "error using packet 1, 'x' and
>> 'units' must have length >0". Does anyone know what I'm doing wrong? The
>> code I've been using is:
>>
>> # generate some fake data
>> data.frame(x = seq(-4, 0, 0.5), y = seq(0, 40, 5))-> df
>> expand.grid(x = df$x, y = df$y) -> gridd
>> (gridd$y* gridd$x) -> gridd$z
>>
>> data.frame(x = runif(10, -4, 0), y = runif(10, 0, 40))-> pts1
>> pts1$z <- pts1$x*pts1$y
>>
>> # plot
>>
>> wireframe(z ~ y*x, gridd, drape = TRUE, colorkey= TRUE,
>> scales = list(arrows = FALSE),
>> pts = pts1,
>> panel.3d.wireframe =
>> function(x, y, z,xlim, ylim, zlim, xlim.scaled, ylim.scaled,
>> zlim.scaled, pts1, ...)
>>
>> {
>> panel.3dwire(x = x, y = y, z = z,
>> xlim = c(-4, 0),
>> ylim = c(0, 40),
>> zlim = c(-160, 0),
>> xlim.scaled = c(-0.5, 0.5),
>> ylim.scaled = c(-0.5, 0.5),
>> zlim.scaled = c(-0.5, 0.5),
>> ...)
>> xx <- xlim.scaled[1] + diff(xlim.scaled) * (pts1$x - xlim[1]) /
>> diff(xlim)
>> yy <- ylim.scaled[1] + diff(ylim.scaled) * (pts1$y - ylim[1]) /
>> diff(ylim)
>> zz <- zlim.scaled[1] + diff(zlim.scaled) * (pts1$z - zlim[1]) /
>> diff(zlim)
>> panel.3dscatter(x = xx,
>>
>
> You assigned 'pts1' to 'pts', so you should have used 'pts' above:
>
>
> y = yy,
>> z = zz,
>> xlim = xlim,
>> ylim = ylim,
>> zlim = zlim,
>> xlim.scaled = xlim.scaled,
>> ylim.scaled = ylim.scaled,
>> zlim.scaled = zlim.scaled,
>> ...)
>> })
>>
>> Thanks so much!
>>
>> -Megan Bartlett
>>
>> [[alternative HTML version deleted]]
>>
>> ______________________________**________________
>> R-help@r-project.org mailing list
>> https://stat.ethz.ch/mailman/**listinfo/r-help<https://stat.ethz.ch/mailman/listinfo/r-help>
>> PLEASE do read the posting guide http://www.R-project.org/**
>> posting-guide.html <http://www.R-project.org/posting-guide.html>
>> and provide commented, minimal, self-contained, reproducible code.
>>
>
> David Winsemius, MD
> West Hartford, CT
>
>
[[alternative HTML version deleted]]
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