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. Author manuscript; available in PMC: 2019 Mar 20.
Published in final edited form as: Environ Epidemiol. 2018 Dec;2(4):e030. doi: 10.1097/EE9.0000000000000030

Figure 2.

Figure 2.

A hypothetical ‘map’ of profiles (Z) produced by a self-organizing map (SOM) set to target four groups, k = 4. Each example profile is illustrated using a bar to reflect the sample mean (X-) for component (X) during events assigned to profile Zk. SOM coordinates are presented as XY-axes.