ERROR Logistic Regression Predictor Execute failed: No match found

Hi!

I have a problem with the Regression Predictor node. When I try to run it, I get this error message in the console: ERROR Logistic Regression Predictor 2:5 Execute failed: No match found. What does it means?

My workflow is pretty straightforward: Read Excel file => Normalize the data => Partition it 80%-20% => Logistic regression learner for the 80% of the data => Apply it on the 20% remaining.

The Learner works but not the predictor, why?

I someone could help me, I would be very grateful!

Alex

Hi Alex,

It would be great if you could share the workflow.

Thank you,
Cheers,
Vincenzo

Hi Vincenzo,
Thank you for your answer!

I put the workflow in the link.

https://drive.google.com/file/d/1vVWzb0u0Nbwb7kJfhHuG0-p87kE_YxOz/view?usp=sharing

Hello Acaelesto,

that is a tricky one.
The predictor has problems with the new line character (\n) in the “Current ration\n2015” column.
You can use the Column Rename (Regex) node with the configuration displayed below to convert the newline character into a space character (or any other none special character :wink: ).
regex_rename

Cheers,
nemad

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