Displaying 1 result from an estimated 1 matches for "tracevar".
2011 Jan 28
6
User error in calling predict/model.frame
...= 10.2058714830537, scale = 0.984627257169526),
scale(xxB, center = 20.4491690881149, scale = 1.13765718273923))
An example case:
dat <- data.frame(xxA = rnorm(20,10), xxB = rnorm(10,20))
dat$out <- with(dat,xxA+xxB+xxA*xxB+rnorm(20,20))
xVar <- "scale(xxA)"
traceVar <- "scale(xxB)"
DVname <- "out"
lm.obj <- lm.res.scale <- lm(out ~ scale(xxA)*scale(xxB),data=dat)
my.data <- lm.obj$model #load the data from the lm object
X1 <- my.data[,xVar]
X2 <- my.data[,traceVar]
DV <- lm.obj$model[,DVname]...