Extended Data Fig. 2: Scatterplots illustrating the separation in 3D space between calls from the same caller to different receivers.
From: African elephants address one another with individually specific name-like calls

Axes are the first three principal coordinates extracted from the proximity scores of a random forest trained to predict receiver ID. Each plot represents a single caller, each point is a single call, and receiver IDs are coded by both color and shape. This figure only includes calls where caller ID was known for certain, where the call was predicted correctly in at least 25% of random forest iterations, and where the caller made at least two such calls each to at least two different receivers.