I am using the qcc library to create an xbar.
When I use the following values it works:
data <- c(4.74, 8.71, 7.01)
qcc(data, type="xbar.one", center = 2)
I however also want to plot values on the x-axis. So instead of saying 1, 2, 3 it should say: "John, Mike, Jason"
Any thoughts on how I can easily add these values on the x-axis?