Hello,

I am doing Discriminant analysis for customer loyalty analysis. I have 9 predictors (independent variable) for doing that analysis. Customers perception towards those predictors will capture using 1 to 9-point likert scale. I was wondering do I need to dummy code all of them? For your reference I added a screenshot.

Variable Variable Meaning Measurement Meaning of Rating Name Points Ads Rating of restaurant's TV 5-point Likert Scale 5=Very good commercial that currently on air Price Price perception 5-point Likert Scale 5=Very favorable Place Location perception 5-point Likert Scale 5 = Very convenient F Quali Food quality perception 5-point Likert Scale 5=Very good S Quali Service quality perception 5-point Likert Scale 5=Very good Varie Variety perception 5-point Likert Scale |5=Very good S scape Ambience 5-point Likert Scale 5=Very good P Faci Parking facility 5-point Likert Scale 5=Very good Gifts Rewards and loyalty 5-point Likert Scale 5=Very good programs offered by the restaurant