Hi, thanks, I think I've changed the previous as you told me but I'm having
this error, what does it mean?
model<- lm(log(v1)~log(v2)+v3, data=dat)
newax<- expand.grid(
v2 = seq(min(log(dat$v2)), max(log(dat$v2)), length=100),
v3= seq(min(dat$v3), max(dat$v3), length=100))
fit <- predict(model,newax)
graph <- regr2.plot(x=seq(min(log(dat$v2)), max(log(dat$v2)), length=100),
y=seq(min(dat$v3), max(dat$v3), length=100),
z= matrix(fit, 100, 100), main="Least-squares",
resid.plot= TRUE, plot.base.points= TRUE, expand=0.5,
ticktype="detailed", theta=-45)
Error en cbind(x, y, z, 1) %*% pmat : argumentos no compatibles
Thanks again, u...@host.com
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