Write CSV only if dataset is not empty

pablo_oda

I am creating a couple of csv after some processing, ocassionally one or more of the datasets are empty (0 examples). Problem is they are still created as CSV that only shows the attributes and in that case, I rather skip the Write CSV operator.

I imagine I have to go with the branch operator, but I don't understand how to use it to check the numbers of example to use it as a condition.

kayman

In the branch options you can select minimum examples with the drop down

condition type -> min_examples 
condition value -> 1

So in this case your output has to have at least 1 example, otherwise it's empty