This dataset records some properties of the planets in our solar system.
planetsA matrix with 9 rows (the planets) and 7 columns, representing additional features of the planets:
1 if the planet is small, 0 otherwise.
1 if the planet is medium-sized, 0 otherwise.
1 if the planet is large, 0 otherwise.
1 if the planet belongs in the inner solar system, 0 otherwise.
1 if the planet belongs in the outer solar system, 0 otherwise.
1 if the planet has a natural moon, 0 otherwise.
1 if the planet has no moon, 0 otherwise.
Wille R (1982). “Restructuring Lattice Theory: An Approach Based on Hierarchies of Concepts.” In Ordered Sets, pp. 445–470. Springer.