Functions

Expression Builder includes a variety of functions that can be applied to character, numeric, and date data. There are functions that support most of the common data preprocessing required for data mining, including missing values treatment. To see a list of the available functions, expand the category of interest.

Functions are divided into the following categories:

• Character: Includes concatenate, trim, length, substring, and others.

• Conversion: Converts to character, date, number, and others.

• Date: Calculates next day, inserts time stamp, truncates, rounds, and performs other date operations.

• Numeric: Includes functions such as absolute value, ceiling, floor, trigonometric functions, hyperbolic functions, logarithms, and exponential values.

• Analytical: Performs analytical functions.

• NULL Value Substitution: For dates, characters, and numbers.

The notation for the functions is that of SQL.