Multi-level analysis

Hi,

How I do a multi-level analysis in R?

This is a non-spatial question but you can use package nlme and lme4 for
that. If you want to try a Bayesian approach, you can use WinBUGS
through R2WinBUGS. You can also find some packages related to multilevel
analysis in the list of packages at CRAN (just look for 'multilevel').

Best,

Virgilio