[R] NLME plottting and Confidence Intervals
Greg Tarpinian
sasprog474 at yahoo.com
Fri Nov 19 03:03:20 CET 2004
All,
I have been learning about mixed models and have been
able to successfully use lme( ) and nlme( ) to fit
some simple linear and 4PL logistic models. As a
relative "newbie" I am at a loss as to how I can do
the following:
(1) Import a SAS dataset with DATE9. formatted time
values and get them converted into a convenient
time variable for use with the nlme package. In
particular, I would like to use the lattice
package to produce panel plots for diagnostic and
exploratory purposes.
(2) Plot the fitted model(s) along with appropriate
95% confidence bounds for the model
(3) Obtain prediction intervals for given individuals
in the datasets.
Sorry for what must be trivial questions! I very
much appreciate any insight.
Thanks,
Greg
More information about the R-help
mailing list