An efficient algorithm for TUCKALS3 on data with large numbers of observation units |
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| Authors: | Henk A. L. Kiers Pieter M. Kroonenberg Jos M. F. ten Berge |
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| Affiliation: | (1) University of Groningen, The Netherlands;(2) Leiden University, The Netherlands;(3) Department of Psychology, Grote Kruisstraat 2/1, 9712 TS Groningen, The Netherlands |
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| Abstract: | A modification of the TUCKALS3 algorithm is proposed that handles three-way arrays of order I × J × K for any I. When I is much larger than JK, the modified algorithm needs less work space to store the data during the iterative part of the algorithm than does the original algorithm. Because of this and the additional feature that execution speed is higher, the modified algorithm is highly suitable for use on personal computers. This research has been made possible by a fellowship from the Royal Netherlands Academy of Arts and Sciences to the first author. |
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| Keywords: | TUCKALS3 alternating least squares multitrait-multimethod matrices |
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