median
Computes the approximate median of all grouped values using a t-digest algorithm.
median(xs:list) -> floatDescription
The median function returns an approximate median of all numeric values in
xs, computed with a t-digest algorithm.
xs: list
The values to evaluate.
Examples
Compute the median value
from {x: 1}, {x: 2}, {x: 3}, {x: 4}
summarize median_value=median(x)
{median_value: 2.5}