Patrizio Frederic wrote:
2008/5/29 Frank E Harrell Jr <[EMAIL PROTECTED]>:
Patrizio Frederic wrote:
dear Harrell,
thank you for quick reply and suggestions. I still have the problem:
library(Design)
x = rnorm(100)
y = runif(100)<(exp(x)/(1+exp(x)))
y = 0*y+1*y
d = datadist(x,y)
options(datadist="d")
fit = lrm(y~x)
# works fine, but
plot(fit) #produce the error message
I cannot reproduce the error on Linux R 2.7.0 using the same version of the
packages you are using.
Frank
just for the records, I solved the problem: in Windows R 2.7.0 one has to set:
d = datadist(x,y)
.Options$datadist="d"
done that functions summary.Design, and plot.Design work fine.
PF
Thanks for the solution. But I wish someone would tell us why the
solution makes sense. If you have changed your R environment in any way
from the defaults please let us know.
Frank
--
Frank E Harrell Jr Professor and Chair School of Medicine
Department of Biostatistics Vanderbilt University
______________________________________________
R-help@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.
