how to add new column with an attribute's name and empty values

EL75

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

MartinLiebig

嗨@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

lionelderkrikor

Hi@EL75,

To modify the column position, you can use theReorder Attributesoperator

Regards,

Lionel

EL75

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?

EL75

谢谢gain