May i know the way to remove all '??' in these column??
Coldlen
New Altair Community Member
Answers
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Hi,
the ?s are missing values. How did you get this result? It seems like the output of a full outer join.
The basic operations for handling missing values are:- Filter Examples with non-missing rows (if you only have a few missings)
- Select Attributes for removing the affected attribute(s) (if you have many missings and the attribute is not important)
- Replace Missing Values (if you know a replacement value or a reasonable function)
- Impute Missing Values (which builds a model from examples that don't have missing values to predict the missing ones)
Regards,
Balázs2