VaziriXu

Contains two similarity matrices related to an experiment on visual object represenations.
similarities (correlations) of 54 OCP (see O'Reilly, Chatman, and Caldwell, 1991) items. The last three columns contain the facet assigned by Bilsky and Jehn (2002) as well as the external variables for regional restrictions.

datasets

Implements the following approaches for multidimensional scaling (MDS) based on stress minimization using majorization (smacof): ratio/interval/ordinal/spline MDS on symmetric dissimilarity matrices, MDS with external constraints on the configuration, individual differences scaling (idioscal, indscal), MDS with spherical restrictions, and ratio/interval/ordinal/spline unfolding (circular restrictions, row-conditional). Various tools and extensions like jackknife MDS, bootstrap MDS, permutation tests, MDS biplots, gravity models, unidimensional scaling, drift vectors (asymmetric MDS), classical scaling, and Procrustes are implemented as well.

Patrick Mair

smacof

Multidimensional Scaling

Jan De Leeuw

Patrick J. F. Groenen

Ingwer Borg

VaziriXu function

List of two similarity matrices from two experimental conditions: artificial and real object categories.
V1-V4: early visual areas
LO: lateral occipital regions
VOT: ventral occipitotemporal regions
V3A, V3B, IPS0-IPS4: topographic regions along the intraparietal sulcus
Inferior IPS: inferior intraparietal sulcus
Superior IPS: superior intraparietal sulcus

Format

Visual Object Representations — VaziriXu

Visual Object Representations

VaziriXu: Visual Object Representations

Description

Usage

Arguments

Format

References

Examples