3. Line arithmetic mean (MAL) pairwise comparison method
The method we're now presenting (steps 3 to 5) is quick and easy to apply, either by hand or using an Excel® spreadsheet.
Construct a matrix of importance ratio comparisons, reciprocal and with 1's on the diagonal. The matrix need not be consistent, as it is the result of pair-by-pair expert estimation.
Sum the matrix comparisons over the rows.
Normalize the result (divide each sum by the sum of the sums).
This vector is already a good approximation of the weights. We can be satisfied with this.
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Line arithmetic mean (MAL) pairwise comparison method
Column arithmetic mean (MAC) pairwise comparison method
Bibliography
Yannou B., Limayem F., "Les méthodes de comparaison par paires - Intérêt fondamental, Méthodes pratiques, Avancées scientifiques, Logiciel - Première partie : Intérêt fondamental", The Value of Products, Processes and Services , vol. 92, p. 15-18, April 2002
Yannou B., Limayem F., " Les méthodes de comparaison par paires - Intérêt fondamental, Méthodes pratiques, Avancées...
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