Fitting Longitudinal Reduced-Rank Regression Models by Alternating Least Squares
- 1 September 1991
- journal article
- research article
- Published by Cambridge University Press (CUP) in Psychometrika
- Vol. 56 (3) , 433-447
- https://doi.org/10.1007/bf02294484
Abstract
An alternating least squares method for iteratively fitting the longitudinal reduced-rank regression model is proposed. The method uses ordinary least squares and majorization substeps to estimate the unknown parameters in the system and measurement equations of the model. In an example with cross-sectional data, it is shown how the results conform closely to results from eigenanalysis. Optimal scaling of nominal and ordinal variables is added in a third substep, and illustrated with two examples involving cross-sectional and longitudinal data.Keywords
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