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Unit: SDL_dstruct
Class: none
Declaration: TFeatKind = (fkUndefined, fkInteger, fkDouble, fkString, fkTriState);

The type declaration TFeatKind defines the data types supported by the class TFeatureMatrix.

Data Type Explanation
fkUndefined Undefined data type. This is the default data type after creating a feature matrix or after adding additional columns. The user has to set the FeatKind field of the feature properties to any of the data types listed below before being able to use the corresponding column.
fkInteger 64-bit integer values
fkDouble Double precision floating point values
fkString Strings of any length
fkTriState Tri-state variables (boolean "true" and "false" plus "undefined")

Last Update: 2017-Apr-18