https://communities.sas.com/t5/New-SAS-User/How-to-create-dummy-variables-Categorical-Variables/m-p/516589#M3201 <P>Read <A href="https://blogs.sas.com/content/iml/2016/02/22/create-dummy-variables-in-sas.html" target="_self">Create Dummy Variables In SAS</A></P> Wed, 28 Nov 2018 07:01:52 GMT PeterClemmensen 2018-11-28T07:01:52Z https://communities.sas.com/t5/New-SAS-User/How-to-create-dummy-variables-Categorical-Variables/m-p/516566#M3195 <P>Hi all,</P><P>If I have three dummy variables as independent variables in my regression model. Should I include interaction term?</P> Wed, 28 Nov 2018 04:39:14 GMT https://communities.sas.com/t5/New-SAS-User/How-to-create-dummy-variables-Categorical-Variables/m-p/516566#M3195 shahd 2018-11-28T04:39:14Z https://communities.sas.com/t5/New-SAS-User/How-to-create-dummy-variables-Categorical-Variables/m-p/516582#M3199 <P>Proc glm, glimmix, genmod and many other regression procs will generate dummy variables for all variables described as class variables. You should add interaction terms to your model if you have the least doubt that there might be some interaction (i.e. that the effect of a variable might not be the same in every category of another variable).</P> Wed, 28 Nov 2018 05:58:51 GMT https://communities.sas.com/t5/New-SAS-User/How-to-create-dummy-variables-Categorical-Variables/m-p/516582#M3199 PGStats 2018-11-28T05:58:51Z https://communities.sas.com/t5/New-SAS-User/How-to-create-dummy-variables-Categorical-Variables/m-p/516584#M3200 Could you please guided me how can I determine if there is interaction between variables Wed, 28 Nov 2018 06:07:03 GMT https://communities.sas.com/t5/New-SAS-User/How-to-create-dummy-variables-Categorical-Variables/m-p/516584#M3200 shahd 2018-11-28T06:07:03Z https://communities.sas.com/t5/New-SAS-User/How-to-create-dummy-variables-Categorical-Variables/m-p/516589#M3201 <P>Read <A href="https://blogs.sas.com/content/iml/2016/02/22/create-dummy-variables-in-sas.html" target="_self">Create Dummy Variables In SAS</A></P> Wed, 28 Nov 2018 07:01:52 GMT https://communities.sas.com/t5/New-SAS-User/How-to-create-dummy-variables-Categorical-Variables/m-p/516589#M3201 PeterClemmensen 2018-11-28T07:01:52Z