I have a nominal data set ready for Multiple Correspondence Analysis... Using SPSS, how can I calculate the Joint Correspondence Analysis to identify the overall inertia of the first two planes?
I think it is better if you use SAS/R to calculate multiple correspondence analysis.
Dareen al-khoury SPSS ->analyze -> dimension reduction -> correspondence analysis:
Then set the parameters according to your variables. Very easy to perform.
Multiple Correspondence Analysis quantifies nominal (categorical) data by assigning numerical values to the cases (objects) and categories so that objects within the same category are close together and objects in different categories are far apart. Each object is as close as possible to the category points of categories that apply to the object. In this way, the categories divide the objects into homogeneous subgroups. Variables are considered homogeneous when they classify objects in the same categories into the same subgroups.
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