acts2probs: Calculate probability matrix from activation matrix, as well as predicted
values
Description
acts2probs takes the activation matrix returned by
ndlClassify and calculates the matrix of probabilities
for the estimated activation matrix, as well as the predicted values
of the response variable.
Usage
acts2probs(acts)
Arguments
acts
A matrix of activations (number of observations by number of levels
of the response variable).
Value
A list with the following components:
p
a matrix with the probabilities of the levels of
the response variable for each observation.
predicted
a character vector with predicted values.
Details
Probabilities in p are obtained by adding the absolute value
of the minimum activation to the activation matrix, and
renorming. The selection rule used to produce predicted is to
choose for each instance in the data the outcome value that has
received the highest probability estimate.
References
Arppe, A. and Baayen, R. H. (in prep.). Statistical classification and principles
of human learning.