what r function is used for clustering r what is the cluster option which statement is used to cluster errors in r how to cluster in r why is clustering an option useful for data replication what is the role of cluster in statistics which function does cluster why use a cluster function in r which db function is used to cluster standard errors in r how to cluster in r how does r clusters? why use a cluster option in r which r function uses a cluster option which is the appropriate cluster option for r why cluster a regression model r is cluster independent compared with static analysis can r cluster a standard error r equivalent to cluster how to cluster a statistic in r why use clustering function for negative regression