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Calculate weighted arithmetic mean.
weighted_mean_arit(x, w)
Data frame.
attribute for which calculate mean.
vector with weights associated to x.
Juan Alberto Molina-Valero, María José Ginzo Villamayor, Manuel Antonio Novo Pérez, Adela Martínez-Calvo, Juan Gabriel Álvarez-González, Fernando Montes and César Pérez-Cruzado.