DBSCAN Guesses() can sometimes return indices of -1. Not supposed to happen i guess?
Besides that, there seems always to be a cluster with just one point as the last entry. This point does not need to be an outlier at all, it often is located somewhere inside another cluster!
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I now understand that -1 probably means an outlier point, not belonging to any cluster. These points are often situated inside clusters though, so why are then not assigned to that cluster?
DBSCAN Guesses() can sometimes return indices of -1. Not supposed to happen i guess?
Besides that, there seems always to be a cluster with just one point as the last entry. This point does not need to be an outlier at all, it often is located somewhere inside another cluster!
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I now understand that -1 probably means an outlier point, not belonging to any cluster. These points are often situated inside clusters though, so why are then not assigned to that cluster?