hmean {comparator}

Harmonic Mean

Description

Harmonic Mean

Usage

hmean(x, ...)

## Default S3 method:
hmean(x, trim = 0, na.rm = FALSE, ...)

Arguments

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.

...

further arguments passed to or from other methods.

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.

Value

If trim is zero (the default), the harmonic 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.

See Also

mean for the arithmetic mean and gmean for the geometric mean.

Examples

x <- c(1:10, 50)
xm <- hmean(x)