Arithmetic mean for numeric labelled vectors
# S3 method for labelled
mean(x, trim = 0, na.rm = FALSE, ...)
a numeric labelled vector.
the fraction (0 to 0.5) of observations to be trimmed from each end of x . before the mean is computed. Values of trim outside that range are taken as the nearest endpoint.
a logical value indicating whether NA
values should be stripped before the computation
proceeds.
additional arguments to be passed to or from methods.