Source: Data obtained from table 7.1, page 154 of Cox, T. F., and M. A. A. Cox. 2001. Multidimensional Scaling. 2nd ed. Boca Raton, FL: Chapman & Hall/CRC.
Scores are on a scale from 0 to 20 and were made by Roger de Piles in the seventeenth century on 57 painters. Cox and Cox (2001) provide the data for 10 of them.
Roger de Piles in the seventeenth century.