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Matrices orientation
I'm confused with the fact that the matrix X introduced in "Definition" paragraph has p rows and n columns, so every column represents one specimen - contrary to the usual arrangement of data in statistics. Is it really the way how the input data are arranged in the factor analysis? — Preceding unsigned comment added by 212.67.71.116 (talk) 10:46, 12 January 2021 (UTC)
Bass-Ackwards analysis
There is a form of factor analysis that has not been mentioned in this article which is useful.
- https://www.sciencedirect.com/science/article/abs/pii/S0092656606000134
- https://experts.umn.edu/en/publications/a-general-method-for-computing-hierarchical-component-structures-
- https://www.infona.pl/resource/bwmeta1.element.elsevier-101f4492-b753-35d3-898f-f6efcda2d8f3
- Possible Utility https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5216419/ — Preceding unsigned comment added by 14.136.243.17 (talk) 11:06, 2 December 2021 (UTC)