[R] mlogit and weights

Hello, I can't figure out why using and not using weights in mlogit yields identical results. My motivation is for the case when an "observation" or "individual" represents a number of individuals. For example, library(mlogit) library(AER) data("TravelMode", package = "AER") TM <- mlogit.data(T

[R] Adding labels on maps (using sp, maptools, or something else suggested)

Hello, I would like to place region names (or abbreviations if space is too limited) on a map. I have tried the following, copying and adapting various examples I have seen but without success. The first example is self-contained, but the second one requires the .shp file, which can retrieved at