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Table A.1.

Importance of all features tested for classification by the Random Forest classifier ordered according to the mean decrease in accuracy (two leftmost columns) and by the mean decrease in the Gini index (two rightmost columns).

Feature name Mean decrease Feature name Mean decrease
accuracy Gini index
parallax_error 0.125 parallax_error 33821
parallax_over_error 0.087 parallax_over_error 27713
pmra 0.056 astrometric_sigma5d_max 24035
astrometric_sigma5d_max 0.052 pmra_error 20226
pmdec 0.047 pmdec_error 14866
pmdec_error 0.027 astrometric_excess_noise 12737
pmra_error 0.025 astrometric_params_solved 7677
astrometric_excess_noise 0.013 ipd_gof_harmonic_amplitude 5628
visibility_periods_used 0.01 ruwe 3383
ruwe 0.008 visibility_periods_used 2371
astrometric_gof_al 0.005 pmdec 2263
astrometric_n_obs_ac 0.005 pmra 2039
ipd_gof_harmonic_amplitude 0.004 ipd_frac_odd_win 1566
astrometric_excess_noise_sig 0.003 ipd_frac_multi_peak 1006
ipd_frac_odd_win 0.002 astrometric_gof_al 801
astrometric_chi2_al 0.002 scan_direction_strength_k2 694
parallax_pmdec_corr 0.002 parallax_pmdec_corr 522
ipd_frac_multi_peak 0.002 astrometric_excess_noise_sig 413
scan_direction_strength_k2 0.001 astrometric_n_good_obs_al 394
astrometric_n_good_obs_al 0.001 astrometric_chi2_al 275
astrometric_params_solved 0.001 astrometric_n_obs_al 244
astrometric_n_obs_al 0.001 astrometric_n_obs_ac 224
astrometric_matched_transits 0.001 dec_parallax_corr 208
dec_parallax_corr 0.001 astrometric_matched_transits 165
dec_pmdec_corr 0.001 dec_pmdec_corr 157
scan_direction_mean_k2 0.001 ra_dec_corr 65
ra_parallax_corr 0 scan_direction_strength_k1 59
scan_direction_strength_k4 0 scan_direction_mean_k2 50
ra_dec_corr 0 scan_direction_strength_k4 50
scan_direction_strength_k1 0 parallax_pmra_corr 49
scan_direction_mean_k4 0 ra_parallax_corr 48
scan_direction_strength_k3 0 ra_pmdec_corr 44
parallax_pmra_corr 0 scan_direction_mean_k4 42
astrometric_n_bad_obs_al 0 scan_direction_strength_k3 41
ra_pmdec_corr 0 astrometric_n_bad_obs_al 38
scan_direction_mean_k3 0 scan_direction_mean_k3 30
ipd_gof_harmonic_phase 0 ipd_gof_harmonic_phase 29
pmra_pmdec_corr 0 ra_pmra_corr 28
scan_direction_mean_k1 0 pmra_pmdec_corr 27
ra_pmra_corr 0 scan_direction_mean_k1 24
dec_pmra_corr 0 dec_pmra_corr 22

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