Fig. 2.
Histogram of the M/L values from GSWLC 2, after applying the threshold D25 > 0.4 arcmin. The galaxies with 
were not used for the machine learning. From the remaining galaxies, 59 637 were used for training, 6627 for validation and 7363 galaxies for testing, as described in Sect. 2.3. These samples were randomly drawn, and hence their distribution is similar.
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