Tibco Exam TCP-SP Topic 5 Question 28 Discussion

A data function is a reusable calculation that can be applied to data in a Spotfire analysis. A data function can have input and output parameters that define how the data function interacts with the data and the analysis. The input parameters specify what data or values are required for the data function to run, and the output parameters specify what data or values are returned by the data function.The types of input or output parameters for a data function are1:

Column: A column parameter represents a single column of data from a data table. A column parameter can be used as input to provide a vector of values to the data function, or as output to create a new column in the data table or overwrite an existing column. A column parameter can have a data type such as real, integer, string, or boolean.

Document property: A document property parameter represents a value that is stored in the analysis document and can be used to control various aspects of the analysis, such as filters, markings, colors, etc. A document property parameter can be used as input to provide a scalar value to the data function, or as output to create a new document property or overwrite an existing document property. A document property parameter can have a data type such as real, integer, string, boolean, date, or time.

Value: A value parameter represents a scalar value that is entered by the user or calculated by the data function. A value parameter can be used as input to provide a constant or variable value to the data function, or as output to return a single value from the data function. A value parameter can have a data type such as real, integer, string, boolean, date, or time.

The other options, column property, table, and visualization, are not valid types of input or output parameters for a data function.Reference:

Details on Data Functions -- Parameters

Configuring Data Function Parameters

How to select/deselect inputs/outputs/parameters in Statistica Data Function for Spotfire

How to pass input from Spotfire to Statistica Data Function?