Overview > klyn.math > NDArray > mean
Version 0.1.4 Overview Index Tree Deprecated
klyn.math.NDArray.mean
method
public mean(axis as Int) as NDArray<Double>:
Description

Computes the arithmetic mean along one axis.

Parameters
ParameterDescription
axis0 for columns, 1 for rows on 2D arrays.
Returns

A 1D NDArray<Double> containing axis means.

Throws
  • IndexException if the axis does not exist.
  • ValueError if the array is empty or has unsupported dimensions.
Example
import klyn.math

a = NDArray<Int>.fromList([[1, 2], [3, 4]])
print(a.mean(0))  # [2.0, 3.0]
print(a.mean(1))  # [1.5, 3.5]