Question

I want to run GEE procedure using R but I can’t load geepack on my Mac. Here’s the error I got. Would someone please help me interpret what this means? Why should I need to load so many other packages in order to use geepack. Thank you.

> library(geepack)
Loading required package: doBy
Loading required package: survival
Loading required package: splines
Loading required package: R2HTML
Loading required package: multcomp
Loading required package: mvtnorm
Loading required package: lme4
Loading required package: Matrix
Loading required package: lattice

Attaching package: 'Matrix'

The following object(s) are masked from 'package:base':

    det


Attaching package: 'lme4'

The following object(s) are masked from 'package:stats':

    AIC, BIC

Loading required package: snow
Error: package 'snow' could not be loaded
In addition: Warning messages:
1: package 'survival' was built under R version 2.13.2 
2: In library(pkg, character.only = TRUE, logical.return = TRUE, lib.loc = lib.loc) :
  there is no package called 'snow'

Answer 1

I removed the R.2.13.2 version and installed the older version R 2.11 and it worked just fine. I think the R.2.13.2 version probably needs some fix. Perhaps the R2.14 version might work better.