: It should ideally not be redundant with other features to avoid multicollinearity.
For a feature to be considered "proper" or effective, especially in machine learning or database modeling, it typically exhibits the following characteristics: Key Characteristics of a Proper Feature : It should ideally not be redundant with
: Features should be intuitive and provide clear information about the entity they describe (e.g., a "Price" feature for an "Invoice" entity in a database schema ). : It should ideally not be redundant with
: A proper feature should have a strong relationship with the target variable you are trying to predict or categorize. : It should ideally not be redundant with