Do Filters & Attribute selection work for subprocesses?

reslip

I'm assisting students with rapidminer for First Robotics Competition (FRC). We have many binary hoot log files that must be converted to CSV before use in rapidminer. After the data is in CSV, we're trying to filter out data where a column is a certain value and only pick specific columns. We have to do this for 15+ logs.

So far we've created a main process to Open File → ReadCSV → Subprocess1

Subprocess1 will Filter out rows where RobotMode=Autonomous, then Select only specific attributes (Columns) in the next box.

After reading the csv, rapidminer throws an error on the subprocess about not being able to instantiate custom filters and that the column doesn't exist. The column does exist, so I'm wondering if rapidminer doesn't support this. It also seems very tedious to create a new open file box per file vs having a selection dialog.

Joshua_Philip

Hmm, that’s strange, the Filter Examples operator should work just fine inside a subprocess.
Could you double-check that the value you’re filtering for is exactly what you expect, and that you’ve got the right column selected?

If you can, send me a couple of screenshots of your process and the error message — that’ll make it easier to figure out what’s going on.