FR: Factor Analysis Widget

[dsanalytics]

Thank you for all your work on this project!

I could not find FA Widget in your catalog [1]. If not there, are there any plans to implement it? As you may know, sklearn already has it [2][3][4]. Thank you in advance for your consideration. Kind regards.

[1] Orange Data Mining - Widget catalog
https://orangedatamining.com/widget-catalog/

[2] sklearn.decomposition.FactorAnalysis — scikit-learn 1.0.2 documentation
https://scikit-learn.org/stable/modules/generated/sklearn.decomposition.FactorAnalysis.html

[3] Factor Analysis (with rotation) to visualize patterns — scikit-learn 1.0.2 documentation
https://scikit-learn.org/stable/auto_examples/decomposition/plot_varimax_fa.html

[4] Model selection with Probabilistic PCA and Factor Analysis (FA) — scikit-learn 1.0.2 documentation
https://scikit-learn.org/stable/auto_examples/decomposition/plot_pca_vs_fa_model_selection.html

[ajdapretnar]

Implemented in biolab/orange3-prototypes#251.

[janezd]

... started being implemented.