Is it possible to make Multiple Correspondence Analysis (MCA) with nominal data (such as country or gender) ? And more broadly, what are the assumptions of MCA?
For me, MCA is a type of factor analysis (FA) that allows to use nominal or ordinal data. But in this thread it is said that the first assumption of factor analysis is to have scale (interval or ratio) input variables. How MCA can be a type of factor analysis (that requires scale input variables) but also allow nominal or ordinal data ?