Calculate the geometric mean on the log scale to avoid overflow and
underflow from multiplying many values together.
Usage
geo_mean(a, na.rm = FALSE)
Arguments
- a
A numeric vector of non-negative, finite values. Missing values
are allowed; negative values and infinities are rejected.
- na.rm
Remove missing values before calculation.
Value
A number. Zero values give zero, missing values give NA unless
removed, and an empty vector (after removal) gives NaN.
Examples
geo_mean(c(1, 4, 16))
#> [1] 4
geo_mean(c(1, NA, 4), na.rm = TRUE)
#> [1] 2
