[R] wireframe - add data points

From: Strubbe Diederik <diederik.strubbe_at_ua.ac.be>
Date: Wed, 30 Apr 2008 16:35:59 +0200


Hello all,

Iím trying to add some data points to a wireframe. X an Y axis are independent variables, Z axis is predicted probability. Iíd like to add the original data points on which the predicted probabilities are based to the wireframe. Iíve followed some of the previous post on this but get stuck :

## first part yields the wireframe##
setwd("C:/Temp")
 rnp <- read.table("interact.csv",header=T,sep=";")  status <-rnp[,1:1]
 totalfrost <- rnp[,2:2]
 logtps <- rnp[,3:3]
 logpd <- rnp[,4:4]
 logwinterp <- rnp[,5:5]
model <- glm(status~totalfrost+logtps+logpd+logwinterp+totalfrost*logtps+totalfrost*logwinterp,binomial) abc <- expand.grid(totalfrost=seq(-1.9,3.6,by=0.25),logtps=seq(-3.3,1.1,by=0.25),logpd=seq(0.95,4.1, by=0.25),logwinterp=seq(1.49,1.78, by=0.25)) abc$status <-as.vector(predict(model,abc,type="response"))

##below is the import of the original data together with their predicted probabilities## punten <- read.table("probs.csv",header=T,sep=";")

x <- punten[,1:1]
y <- punten[,2:2]
z <- punten[,3:3]

pts <- data.frame(x=x,y=y,z=z)
##end import original data##

wireframe(status~totalfrost*logtps,abc,scales=list(arrows=TRUE),drape=TRUE, screen =list (x=15, y=-50, z=-105), pts = pts, 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 = xlim,
                           ylim = ylim,
                           zlim = zlim,
                           xlim.scaled = xlim.scaled,
                           ylim.scaled = ylim.scaled,
                           zlim.scaled = zlim.scaled,
                           ...)
              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, ...) })

This yields me the following errors :

Warning messages:

1: In Ops.factor(pts$x, xlim[1]) : - not meaningful for factors
2: In Ops.factor(pts$y, ylim[1]) : - not meaningful for factors
3: In Ops.factor(pts$z, zlim[1]) : - not meaningful for factors

Any idea about what is wrong and what to do about it?

Thanks!

Diederi

Diederik Strubbe
Evolutionary Ecology Group
Department of Biology, University of Antwerp Universiteitsplein 1
B-2610 Antwerp, Belgium
http://webhost.ua.ac.be/deco
tel : 32 3 820 23 85

        [[alternative HTML version deleted]]



R-help_at_r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. Received on Wed 30 Apr 2008 - 15:29:19 GMT

Archive maintained by Robert King, hosted by the discipline of statistics at the University of Newcastle, Australia.
Archive generated by hypermail 2.2.0, at Sat 03 May 2008 - 20:31:55 GMT.

Mailing list information is available at https://stat.ethz.ch/mailman/listinfo/r-help. Please read the posting guide before posting to the list.

list of date sections of archive