What would be the best operator to use to filter/remove bad data for Sentiment Analysis?

fishmansffishmansf Member Posts: 1 Newbie
I have a data set that is a list of reviews for the Spotify app but some of the data is either corrupted and outputs non-numerical, alphabetical, or character data as seen below.  What would be a good operator to remove this kind of data?  Thank you!



  • MarcoBarradasMarcoBarradas Administrator, Employee, RapidMiner Certified Analyst, Member Posts: 271 Unicorn
    Hi @fishmansf

    You can use a filter example to set the filtering rule as a match and define a Regex that looks for these non word characters and remove those from your example set. 

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