A two-valued qualitative variable can be represented by a single 0-or-1-valued "dummy" variable. If a qualitative variable has three or more possible values (e.g., make-of-car, or marital-status), ...
Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...
The three methods of variable transformation provided by PROC PRINQUAL are discussed in the following sections. On each iteration, the MTV algorithm alternates classical principal component analysis ...
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