Displaying 2 results from an estimated 2 matches for "indscal".
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sindscal
2008 Jun 05
0
smacof package for multidimensional scaling
...metric dissimilarity matrices
- smacof for rectangular matrices (unfolding models)
- smacof with constraints on the configuration (linear, unique,
diagonal, or user-specified constraints; fitting simplex or circumplex)
- 3-way smacof for individual differences (including constraints for
idioscal, indscal, and identity)
- Sphere projections (spherical smacof, primal and dual algorithm).
Each of these approaches is implemented in a metric and nonmetric manner
including primary, secondary, and tertiary approaches for tie handling.
Various 2- and 3D-plots are provided and a package vignette is inclu...
2008 Dec 11
0
Fwd: Jacobi Plane Rotations in R
...en diagonalization
-- Jacobi-based SVD diagonalization
-- approximate simultaneous diagonalization of symmetric matrices (De
Leeuw/Pruzansky 1978)
-- approximate simultaneous diagonalization of rectangular matrices
(TUCKER-2)
-- approximate body diagonalization of three-way arrays (orthogonal
INDSCAL)
-- TUCKER-3 for three-way arrays (three rotations meet a core)
-- PREHOM/MCA approximate KPL-diagonalization of the Burt matrix (De
Leeuw/Bekker 1982)
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Jan de Leeuw, 11667 Steinhoff Rd, Frazier Park, CA 93225
home 661-245-1725 skype 661-...