What is the purpose of the mca action in SAS Viya?

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Réponse

The mca action reduces the dimensionality of nominal variables by using a multiple correspondence analysis (MCA).
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mca

nominalVarsDimReduction

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Other questions about mca
How do I specify the number of new variables to be created? Which parameter is used to define the input table for the analysis? Is it possible to add a custom prefix to the names of the output reduced variables? How can I specify which variables are nominal for the training? How can I save the dimensionality reduction model for future scoring?
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