Dear Miss Czika, Due to my data structure, I am also curious how a tree-based survival analysis would perform. However, I could not find any SAS procedure or EM-Node which is capable of dealing with time-varying covariates of counting process style data. Did I miss something about that? Do you have any thoughts about how the EM survival node deals with conditionally related covariates (b can be equal to 1 only if a is equal to 1)? In such settings, either intercation terms or tree structures should be desirable. Many thanks in advance!
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