bundles / scipy latest / scipy / spatial / distance / _distance / num_obs_dm

function

`scipy.spatial.distance._distance:num_obs_dm`

source: build-install/usr/lib/python3.14/site-packages/scipy/spatial/distance/_distance.py:2433

Signature

def num_obs_dm(d)

Summary

Return the number of original observations that correspond to a square, redundant distance matrix.

Parameters

d : array_like: The target distance matrix.

Returns

num_obs_dm : int: The number of observations in the redundant distance matrix.

Examples

Find the number of original observations corresponding to a square redundant distance matrix d.

from scipy.spatial.distance import num_obs_dm
d = [[0, 100, 200], [100, 0, 150], [200, 150, 0]]
num_obs_dm(d)

✓

Aliases

scipy.spatial.distance.num_obs_dm