# Specifying the Data Type and Content Type (Basic Data Mining Tutorial)

Now that you have selected which columns to use for building your structure and training your models, make any necessary changes to the default data and content types that are set by the wizard.

### Review and modify content type and data type for each column

On the Specify Columns' Content and Data Type page, click Detect to run an algorithm that determines the default data and content types for each column.

Review the entries in the Content Type and Data Type columns and change them if necessary, to make sure that the settings are the same as those listed in the following table.

Typically, the wizard will detect numbers and assign an appropriate numeric data type, but there are many scenarios where you might want to handle a number as text instead. For example, the GeographyKey should be handled as text, because it would be inappropriate to perform mathematical operations on this identifier.

Column

Content Type

Data Type

Address Line1

Discrete

Text

Address Line2

Discrete

Text

Age

Continuous

Long

Bike Buyer

Discrete

Long

Commute Distance

Discrete

Text

CustomerKey

Key

Long

DateLastPurchase

Continuous

Date

Email Address

Discrete

Text

English Education

Discrete

Text

English Occupation

Discrete

Text

FirstName

Discrete

Text

Gender

Discrete

Text

Geography Key

Discrete

Text

House Owner Flag

Discrete

Text

Last Name

Discrete

Text

Marital Status

Discrete

Text

Number Cars Owned

Discrete

Long

Number Children At Home

Discrete

Long

Region

Discrete

Text

Total Children

Discrete

Long

Yearly Income

Continuous

Double

Click Next.