Is the (non-clustered) sandwich estimator really robust to autocorrelation? Thanks Frank ----- Frank Harrell Department of Biostatistics, Vanderbilt University -- View this message in context: http://r.789695.n4.nabble.com/robust-standard-error-of-an-estimator-tp3170257p3170363.html Sent from the R help mailing list archive at Nabble.com.