median, med / -median, -med

[Show / Do not show] the medians.

mean / -mean

[Show / Do not show] the means.

whiskers, w /

-whiskers, -w

[Show / Do not show] the whiskers (lines from the box to the staples).

staples, s

/ -staples, -s

[Show / Do not show] the staples (lines drawn at the last data point within the inner fences).

near / -near

[Show /Do not show] the near outliers (values between the inner and outer fences).

far / -far

[Show / Do not show] the far outliers (values beyond the outer fences).

width(arg) (default =“fixed”)

Set the width settings for the boxplots, where arg is one of: “fixed” (uniform width), “n” (proportional to sample size), “rootn” (proportional to the square root of sample size).

ci(arg) (default= “shade”)

Set the display method for the median confidence intervals, where arg is one of: “none” (do not display), “shade” (shaded intervals), “notch” (notched intervals).