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I have been having the same problem as poster Hodgess, below. It appears that her question was never answered, so I would like to share a solution with the community. The problem is the (apparent?) inability to produce moving range process behavior (a.k.a. "control") charts with individuals data in the package "qcc" (v. 2.0). I have also struggled with the same limitation in

...quot; columns as providing the # observations and unit numbers observation <- qcc.groups(viscosity, batch) # number of batches in phase I ("setup") m <- length(phase[phase == "setup"]) # extract the batch numbers to display for the phase II ("monitoring") data setupBatches <- as.character(batch[phase == "setup"]) monitoringBatches <- as.character(batch[phase == "monitoring"]) # plot xbar chart obj <- qcc(data = observation[1,1:m], type = "xbar.one", newdata = observation[1,-(1:m)], labels =...