search for: tp23579998p23580512

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2009 May 17
2
wireframe 3-D problems
Dear All R Users, I am trying to graph a 3-D graph of simulated data for logit models using the powerful wireframe command, but I got stuck. Here are the codes: x <- seq(-4, 4, by=0.01) y <- seq(-4, 4, by=0.01) p <- 1/(1+exp(-0.12*x + 0.35*y)) mydata <- cbind(x, y, p) require(lattice) wireframe(p~x*y, data=mydata) and I received the following message: Error in