Hello everyone, I am looking to perform a Cox proportional hazards model using Proc Phselect with LASSO for variable selection in SAS Viya for Learners. I am using a dataset consisting of 100 imputations and the following code: proc phselect data=mycas.mydata;
by _imputation_;
class c_: o_: / param=ref ref=first;
model Time*event(0) = C_: o_: n_:;
selection method=lasso(choose=AIC stop=none) details=all;
run; I received the following error message: ERROR: SAS Internal Error. Number of 'groups' (11) exceeded maximum (10) allowed in the AIR Bridge.; The error did not appear after making the following changes to include less than ten imputations: proc phselect data=mydata (where=(_imputation_<=10)); I am looking to include all 100 imputations and not only 10 at a time, is there a way to do this in Viya for Learners? Thanks in advance.
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