A possiblie solution might be to use the survey package. You could specify that the data is clustered using the svydesign function, and then speciy the replicate weights using the as.svrepdesign function. And then, it would be possible to use the withReplicates function to bootstrap the clusters
A copy of Thomas Lumley's book - Complex Surveys - would probably help with this Hope this helps -- View this message in context: http://r.789695.n4.nabble.com/bootstrapping-quantile-regression-tp4647948p4648032.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.