This is an important distinction because it allows additional primitives to be applied to the data to generate new features. However, they should be in a intrepretable format or properly cast before using DFS.Ī more distinct type of datetime is a DateOfBirth. Datetime variable types can be represented as strings, or integers. Datetime ¶Ī Datetime is a representation of a date and/or time. Therefore it isĪpproriate to use the ZIPCode variable type. However, this operation is not valid for all Categorical variable types. It could extract the first 5 digits of a ZIPCode. For example, there could be a custom primitive that applies to the ZIPCode variable type. It is important to make this distinction because there are certain operations that can be applied, but they don’t necessary apply to all Categorical types. These include Countr圜ode, Id, SubRegionCode, and ZIPCode. There are also more distinctions within the Categorical variable type. Satisfaction Rating (“Not Satisfied”, “Satisfied”, “Very Satisfied”)Ĭategorical SubTypes (Countr圜ode, Id, SubRegionCode, ZIPCode) ¶ Ordinal variable types can be represented as strings, or integers.Įducational Background (Elementary, High School, Undergraduate, Graduate) However, these discrete values have a certain order, and the ordering is important to understanding the values. Similar to Categorical, it is usually a limited, and fixed number of possible values. Some examples of Categorical variable types:Ī Ordinal variable type can take ordered discrete values. Categorical variable types can be represented as strings, or integers. It is usually a limited, and fixed number of possible values. Categorical ¶Ī Categorical variable type can take unordered discrete values. If it cannot be ordered, then is a Categorical type. If the data has a certain ordering, it is of Ordinal type. There are 2 sub-variable types of Discrete. If it can be classified into distinct buckets, then it a discrete variable type. It is a type of data that can be counted, but cannot be measured. Discrete ¶Ī Discrete variable type can only take certain values. Let’s explore some of the variable types and understand them in detail. For example, ZIPCode is variable type that is child of Categorical type which is a child of Discrete type. As we can see, there are multiple variable types and some have subclassed variable types.
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