pmc calculates the proportion of the observer's responses that are misclassifications on the basis of the estimated MLDS.
object of class 'mlds'.
numeric indicating the proportion of misclassified trials on the basis of the estimated scale.
Maloney, L. T. and Yang, J. N. (2003). Maximum likelihood difference scaling. Journal of Vision, 3(8):5, 573–585, http://journalofvision.org/3/8/5/, doi:10.1167/3.8.5.
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