Sorting interaction only

[NahidSultanakmc]

Hello,

I am working on repeated logistic regression using proc genmode. In the model, I used interaction term. In the result file, I am able to make  the following lists for the file using this code:

data parameter1;
set CpG;
if Parm = "Intercept" then delete;
if Parm = "MO_SPT_12m" then delete;
if Parm = "gender" then delete;
if Parm = "p0_sesc_5_r" then delete;
if Parm = "P10_Q5BirthWeight" then delete;
if Parm = "P10_Q5BirthWeight" then delete;
if Parm = "Time" then delete;
run;

rcg00026290

rcg00026290*Time

rcg00041989

rcg00041989*Time

rcg00085123

rcg00085123*Time

rcg00119811

rcg00119811*Time

rcg00281977

rcg00281977*Time

 But I need the values with interaction only. Is there any code that will delete the values without interaction term?

Thanks.

[Tom · Accepted solution]

Do you mean you want to keep the values that have an * in them?

data parameter1;
  set CpG;
  if index(parm,'*');
run;

[NahidSultanakmc]

Thank you very much! It's exactly what I needed.