How to add R functions into Spotfire expression language in Spotfire® Using IronPython Scripting

Introduction

Use the DataFunctionExpressionFunction to register a function in the Spotfire expression language (is based on TIBCO Enterprise Runtime for R). Once an expression function has been created, it is available in the Spotfire expression language.

Code Sample

# Copyright © 2017. TIBCO Software Inc. Licensed under TIBCO BSD-style license.

import Spotfire.Dxp.Data.DataFunctions.DataFunctionExpressionFunction as df
import Spotfire.Dxp.Data.DataType as dt

func = df.CreateTERRExpressionFunction(
    "output<-input1*2",
    "DoubleInput",
    "Doubles the input",
    "Math functions",
    dt.Real
)

Document.Data.ExpressionFunctions.Add(func)

References

• DataFunctionExpressionFunction Class: https://docs.tibco.com/pub/doc_remote/sfire_dev/area/doc/api/TIB_sfire-analyst_api/html/T_Spotfire_Dxp_Data_DataFunctions_DataFunctionExpressionFunction.htm