09-26-2013 10:40 AM
I'm using Enterprise Miner 5.3 and am trying to combine the results of several variable selection techniques into a larger pool of "good" variables. I'm using the Decision Tree, Regression and Variable Selection nodes to flag variables as Rejected. What I want is to combine all variables that are not rejected in either or all of the three nodes.
Originally I used the Drop node to drop all Rejected variables for each technique and then used the Merge node to combine the remaining variables into a pool to be used for further modeling. This seems to work fine, as evidenced by the succesful running of the Model Comparison node, however it all goes haywire when I try to combine some of my models with the Ensemble node. It then complains with the following warning (and ensuing errors): "WARNING: Apparent symbolic reference EM_SCORE_OUTPUT not resolved." (Log attached)
1) Does anybody have any idea what causes the error?
2) Am I doing the merging wrong? Is there a better way?
Thank you for your time,
10-01-2013 05:01 PM
This TS note appears to address your issue with EM 5*x. There is a hot fix there. The root cause is the Merge Code.
Problem Note 19447: Incorrect Score Code generated from Merge node
10-02-2013 02:47 AM
Hmm... Thanks for the reply.
This webpage claims the bug was reported in 5.2 and should be fixed in 5.3, right? So in theory, I shouldn't be getting this error, right?
10-03-2013 10:07 AM
Hi at this point I would recommend working with SAS Tech Support. They are an excellent resource for issues like this, and can provide 1:1 support and solutions.