Free Access

Table 1.

Summary of properties for both the Parent and Reference samples.

Sample # Observations # Sources # M.E. # M.E. (# Obs > 2) # S.E.
(1) (2) (3) (4) (5) (6)
Parent 1857 944 506 202 438
Reference 1095 636 273 92 363

Notes. Columns: (1): sample; (2): number of observations; (3): number of sources; (4): number of multi-epoch (M.E.) sources; (5): number of multi-epoch sources with > 2 observations; (6): number of single-epoch (S.E.) sources.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.