The subjective assessment, on a 0 to 20 integer scale, of 54 classical painters. The painters were assessed on four characteristics: composition, drawing, colour and expression. The data is due to the Eighteenth century art critic, de Piles.
The row names of the data frame are the painters. The components are:
The school to which a painter belongs, as indicated by a factor level
code as follows:
"F": Sixteenth Century;
"G": Seventeenth Century;
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