qdm: Fitting a Quadrilateral Dissimilarity Model to Same-Different Judgments

This package provides different specifications of a Quadrilateral Dissimilarity Model which can be used to fit same-different judgments in order to get a predicted matrix that satisfies regular minimality [Colonius & Dzhafarov, 2006, Measurement and representations of sensations, Erlbaum]. From such a matrix, Fechnerian distances can be computed.

Install the latest version of this package by entering the following in R:
install.packages("qdm")
AuthorNora Umbach [aut, cre], Florian Wickelmaier [aut]
Date of publication2014-10-27 15:30:23
MaintainerNora Umbach <nora.umbach@web.de>
LicenseGPL (>= 2)
Version0.1-0

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Files

NAMESPACE
data
data/FMrate.txt.gz
data/lightness.txt.gz
data/datalist
R
R/samediff.R R/qdm.R
MD5
DESCRIPTION
man
man/qdm.Rd man/persp.qdm.Rd man/predict.qdm.Rd man/samediff.Rd man/FMrate.Rd man/lightness.Rd

Questions? Problems? Suggestions? or email at ian@mutexlabs.com.

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