How can I take only the variables with at least 5.000 observations?

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  BalazsBarany Administrator, Moderator, Employee, RapidMiner Certified Analyst, RapidMiner Certified Expert Posts: 955 Unicorn

  March 2021 Solution Accepted

  Hi @ceci_ro, 
  
  one approach would be using the Quality Measures operator. It calculates measures like missing values for each attribute.
  Then "ExampleSet to Weights" from the Converters extension. Here you can select the attribute name and the measure you need (missing values). 
  Then "Select by Weights" with a copy of the original data and the weights you created. Weight relation = less equals, weight = e. g. 0.2 or whatever is appropriate for your data.
  
  Regards,
  Balázs 

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  ceci_ro Member Posts: 3 Contributor I

  March 2021 Solution Accepted

  There is an operator that does this function: Toolbox extension, Filter Attributes with Missing Values ​​operator. Simple and beautiful.

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