mean {base}

R Documentation

Arithmetic Mean

Description

If trim is zero (the default), the arithmetic mean of the values in x is computed. 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.

Missing values are ignored.

Usage

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

Arguments

x	a numeric vector containing the values whose mean is to be computed.
trim	the fraction (0 to 0.5) of observations to be trimmed from each end of x before the mean is computed.
na.rm	a logical value indicating whether NA values should be stripped before the computation proceeds.

See Also

weighted.mean

Examples

x <- c(0:10, 50)
xm <- mean(x)
c(xm, mean(x, trim = .10))

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