Generic function for the (trimmed) arithmetic mean.

`mean(x, …)`# S3 method for default
mean(x, trim = 0, na.rm = FALSE, …)

x

An R object. Currently there are methods for
numeric/logical vectors and date,
date-time and time interval objects. Complex vectors
are allowed for `trim = 0`

, only.

trim

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.

na.rm

a logical value indicating whether `NA`

values should be stripped before the computation proceeds.

…

further arguments passed to or from other methods.

If `trim`

is zero (the default), the arithmetic mean of the
values in `x`

is computed, as a numeric or complex vector of
length one. If `x`

is not logical (coerced to numeric), numeric
(including integer) or complex, `NA_real_`

is returned, with a warning.

If `trim`

is non-zero, a symmetrically trimmed mean is computed
with a fraction of `trim`

observations deleted from each end
before the mean is computed.

Becker, R. A., Chambers, J. M. and Wilks, A. R. (1988)
*The New S Language*.
Wadsworth & Brooks/Cole.

`weighted.mean`

, `mean.POSIXct`

,
`colMeans`

for row and column means.

# NOT RUN { x <- c(0:10, 50) xm <- mean(x) c(xm, mean(x, trim = 0.10)) # }