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I want do logistic regression analysis of my data but all my independent variables are categorical.

2006-09-04 08:54:17 · 1 answers · asked by Anonymous in Science & Mathematics Mathematics

1 answers

Yes.

Google on logistic regression with categorical variables to get to

http://www.google.com/search?q=logistic+regression+with+categorical+variables

When I did so the first link was to

PA 765: Logistic Regression
http://www2.chass.ncsu.edu/garson/PA765/logistic.htm

On that page, under Key Terms and Concepts find

"
Design variables are nominal or ordinal independents (factors) entered as dummy variables. In SPSS binomial logistic regression, categorical independent variables must be declared by clicking on the "Categorical" button in the Logistic Regression dialog box. SPSS multinomial logistic regression will convert categorical variables to dummies automatically by leaving out the last category, which becomes the reference category. Researchers may prefer to create dummy variables manually so as to control which category is omitted and thus becomes the reference category. For more on the selection of dummy variables, click here.
"

The "click here" takes you to

http://www2.chass.ncsu.edu/garson/PA765/regress.htm#dummy

which tells you how to handle your categorical variables.

2006-09-04 09:06:45 · answer #1 · answered by ymail493 5 · 0 0

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