On Fri, 8 Jun 2012, Kazu Nada wrote:
Hi, I need help to do "mlogit" including "l( ) function.
When I put following command,
"Error in parse(text = x) : <text>:2:0:" is shown.
(1) Your example is not reproducible for us, see the footer of this mail
and follow the posting guide.
(2) You manually set up a lot of interaction terms which actually can be
seen as alternative-specific variables. You can simplify your formula
considerably if you use mlogit's y ~ x | z notation. See the two package
vignettes for guidance: vignette(package = "mlogit")
--------
res1<-(mlogit(choice~train+bus+plane+taxi+year+cost
+I(gen*train)+I(gen*bus)+I(gen*plane)+I(gen*taxi)+I(gen*year)+I(gen*cost)
+I(age*train)+I(age*bus)+I(age*plane)+I(age*taxi)+I(age*year)+I(age*cost)
+I(prep*train)+I(prep*bus)+I(prep*plane)+I(prep*taxi)+I(prep*year)+I(prep*cost)
+I(inc*train)+I(inc*bus)+I(inc*plane)+I(inc*taxi)+I(inc*year)+I(inc*cost)
+I(tour*train)+I(tour*bus)+I(tour*plane)+I(tour*taxi)+I(tour*year)+I(tour*cost)
+I(ecot*train)+I(ecot*bus)+I(ecot*plane)+I(ecot*taxi)+I(ecot*year)+I(ecot*cost)
+I(kibo*train)+I(kibo*bus)+I(kibo*plane)+I(kibo*taxi)+I(kibo*year)+I(kibo*cost)
,data=dat))
--------
I appreciate if you could provide me any suggestion.
Thank you.
Kaz
[[alternative HTML version deleted]]
______________________________________________
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.
______________________________________________
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.
