mean() | Notion

mean full signature

mean(x, trim = 0, na.rm = FALSE, ...)

Argument	Meaning
x	Numeric vector
trim	% to trim off from both ends (e.g., trim = 0.1 removes top/bottom 10%)
na.rm	Remove NA values? (TRUE or FALSE)

mean(c(1, 2, 3, 100))               # = 26.5 (skewed by 100)
mean(c(1, 2, 3, 100), trim = 0.25)  # = 2.5 (trims 1 & 100)

mean(c(1, 2, NA))                  # = NA
mean(c(1, 2, NA), na.rm = TRUE)    # = 1.5