paired_comparisons {PLMIX}

Paired comparison matrix for a partial ordering/ranking dataset

Description

Construct the paired comparison matrix for a partial ordering/ranking dataset.

Usage

paired_comparisons(data, format_input, nranked = NULL)

Arguments

data

Numeric N\timesK data matrix of partial sequences.

format_input

Character string indicating the format of the data input, namely "ordering" or "ranking".

nranked

Optional numeric vector of length N with the number of items ranked by each sample unit.

Value

Numeric K\timesK paired comparison matrix: the (i,i')-th entry indicates the number of sample units that preferred item i to item i'.

Author(s)

Cristina Mollica and Luca Tardella

References

Mollica, C. and Tardella, L. (2017). Bayesian Plackett-Luce mixture models for partially ranked data. Psychometrika, 82(2), pages 442–458, ISSN: 0033-3123, DOI: 10.1007/s11336-016-9530-0.

See Also

rank_summaries

Examples

data(d_dublinwest)
paired_comparisons(data=d_dublinwest, format_input="ordering")