Census of ρ Ophiuchi candidate members from Gaia Data Release 2

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Table 2

Explored hyperparameters and number of cluster elements identified by each algorithm.

Algorithm	mPts	Eps	Elements	Control (%)
`DBSCAN`	100	0.373	492	155 (82.4)
`DBSCAN`	130	0.418	524	156 (83.0)
`DBSCAN`	160	0.455	552	158 (84.0)

`OPTICS`	14	0.245	451	157 (83.5)
`OPTICS`	16	0.259	494	157 (83.5)
`OPTICS`	18	0.265	497	159 (84.6)

`HDBSCAN`	21	–	427	153 (81.4)
`HDBSCAN`	35	–	502	163 (86.7)
`HDBSCAN`	50	–	462	158 (84.0)

Notes.The fifth column indicates the number of control sample members found; the percentage is indicated inside a parenthesis. For HDBSCAN the first column corresponds to the mCls.

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