Pork Tasting Data

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Description

This data set provides the individual choice matrices of two judges choosing between pairs of three samples of pork meet. The pigs had been fed on either corn (C), corn plus peanut supplement (Cp), or corn plus a large peanut supplement (CP). Each judge does five repetitions. The data are stored in a 3d array, the first five matrices of which correspond to the five repetitions of the first judge, the last five to the repetitions of the second judge. Row stimuli are chosen (preferred) over column stimuli.

Usage

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Format

A 3d array consisting of ten square matrices.

Source

Bradley, R.A., & Terry, M.E. (1952). Rank analysis of incomplete block designs. I. The method of paired comparisons. Biometrika, 39, 324–345.

Examples

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data(pork)
apply(pork, 1:2, sum)  # aggregate choice frequencies