Dummy_Variable and and Selection in Factor Analysis

@purushottamnarayansh wrote:

Hello,
I am new to the Data science and I was working on a dummy model for linear regression. There were more than 53 variable which are numeric in nature but data Data Dictionary stating these are Cat var.
E.g. agecat
1 <18
2 18-24
3 25-34
4 35-49
5 50-64
6 >65
9 No response

So I have created dummy Variables for the those var.

Now questions are.

1. Should I create dummy Var for all the variables?
2. If there is any missing Value in this Variable , what should be imputed ?
3. Which Variable must be given in Factor Analysis Dummy Variables or original Variables?

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