HH\Lib\Math\mean

This API is part of the Hack Standard Library, not HHVM itself.
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This function is available as Math\mean() in Facebook's www repository.

Returns the arithmetic mean of the numbers in the given container

Description

namespace HH\Lib\Math;

function mean(
  Container<num> $numbers,
): ?float;

To find the sum, see Math\sum(). To find the maximum, see Math\max(). To find the minimum, see Math\min().

Parameters