I am using SPSS to analyze my data. It is multinomial regression I am using. I have 14 predictor variables of which 9 are categorical and 5 continuous. The response variable is categorical with three categories. Then after pressing the appropriate buttons to reach at the multinomial regreesion the result displays but the error message I am facing is stepwise regression is not processed. Where do you think is the problem? And what is numerical problem and how can I solve it?.
Can I reduce the number of variables step by step considering the VIF till it approaches to 1?