how to add new column with an attribute's name and empty values
hi there,
I'd like to know how to add new column, define a name for attribute (head of the column) and keep empty values in the rows.
The reason is that I need to import an excel sheet in rapidminer, modify it (add columns and empty rows) and then import it in an other process that requires columns with empty values.
thank you in advance for your help
I'd like to know how to add new column, define a name for attribute (head of the column) and keep empty values in the rows.
The reason is that I need to import an excel sheet in rapidminer, modify it (add columns and empty rows) and then import it in an other process that requires columns with empty values.
thank you in advance for your help
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Altair EmployeeHI @EL75,
you can just use Generate Attributes for this. If you need a numerical missing value you can use
MISSING_NUMERIC
for a nominal
MISSING_NOMINAL
Best,
Martin
thank you!
could you tell me if there's a operator to modify the column position in the final result, I don't know why they are moved?
could you tell me if there's a operator to modify the column position in the final result, I don't know why they are moved?
thanks again 
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Altair EmployeeHI @EL75,
you can just use Generate Attributes for this. If you need a numerical missing value you can use
MISSING_NUMERIC
for a nominal
MISSING_NOMINAL
Best,
Martin