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How is it possible to get rid of standalone spheres? Or how can I manipulate the data set, that I don't plot spheres, which are not connected together? (Means the surface of a sphere does't touch another sphere) In the example there are some spheres which aren't connected to the main pile. The data set includes x-,y-,z-coordinates and the volume of each sphere.

Thank you, Tom

example plot of spheres

Tom
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The thing you are asking for is called anomaly detection and it is not a problem of plotting a graph but a family of algorithms for analyzing multidimensional data.

There are many approaches to this problem but perhaps you could start by looking at: https://github.com/milanflach/MultivariateAnomalies.jl

Another approach would be to use a clustering method (see https://github.com/JuliaStats/Clustering.jl) such as DBSCAN, and then interpret small clusters and anomalies, for discussion see here https://towardsdatascience.com/best-clustering-algorithms-for-anomaly-detection-d5b7412537c8.

Przemyslaw Szufel
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  • Thank you! I will give it a try tomorrow. Cheers – Tom Oct 04 '20 at 18:17
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    DB-SCAN with a proper radius should do exactly what you need as Przemyslaw suggested. Or you might create a graph and find a giant connected component in it using LightGraphs.jl. – Bogumił Kamiński Oct 04 '20 at 20:48