cross validation - sas miner

[dee2017]

Hello,

I would like to do cross validation in sas miner. I have a file import node, then a data partition node, transform variables node,start group node, decision tree and end group node in the order listed. However when i ran the start group node it comes up with an error;

"Missing a start groups or an End Groups node".

Would anyone know how to rectify this issue please? I already have both the nodes it says are missing.

And i put this formula in the transform variables formulas;

int((f*(ranuni(0)))+1)

I also set the start groups mode to Cross validation. So not sure where i am going wrong.

Thanks in advance
Dee

[WendyCzika]

Try running from the End Groups node; I don't think you can run the Start Groups node without also running the End Groups node in the flow.

[dee2017]

Thanks. That did work but now the decision tree has the same error. It says;

"Missing a start node or end node"

The decision tree is between the start group and end group.

Any advise on this please?

Thanks

Dee

[WendyCzika · Accepted solution]

Do you mean if you run from the Decision Tree node?  Anytime you have Start/End Groups nodes in your flow, you need to run from the End Groups node or a subsequent node since the Start and End Groups nodes have to be paired together.

[dee2017]

Your suggestion worked!

Thank you so much.

Much appreciated.

Dee