09-01-2017 06:05 AM - edited 09-01-2017 06:10 AM
Hello , I need your help !
I have a database with several qualitative variables and 2 quantitative variables.
Amoung them, I have 2 qualitative variables with 20 modalities.
I afterward wish to make a logistic regression.
But before , I would like to reduce the number of the modalities of these variables.
For example, for the qualitative variable "center" there are 20 modalities and I wish to reduce these modalities in order to obtain clusters. For example obtain 5 modalities if the number of cluster is equal to 5.
For the other qualitative variable, there are also 20 modalities I would like to reduce them also .
Here is the code which I made:
PROC TRANSREG DATA = X
DESIGN NO PRINT ;
model class ( center /zero= none);
output out = tbc;
proc varclus data = tbc outtree= tree;
proc tree data=tree horizontal;
But it does not work because I insist: I want to group the modalities of same and only variable one!
Will have you a code to proposeto me ?
I try to find the solution for a long time, I block for 3 days! I am discouraged...
Beforehand thank you for your help..
Excuse me for level of English, I am french