Big Data Management User Guide

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Extracting an Array Element Using a Subscript Operator

Use the subscript operator in expressions to extract one or more elements of an array.

In the transformation, create an output port of the same data type as the return value of the array element that you want to extract.

To extract more than one element in an array, create an array output port. The data type of the elements in the type configuration for the array port must match the data type of the return value of the array elements.

In the

Expression

column for the output port, click the

Open

button.

The

Expression Editor

opens.

Delete the existing expression in the editor.

Click the

Ports

tab and select an array port.

Enter one or more index values within the subscript operator.

To extract array elements in a multidimensional array, enter index values within each subscript operator.

Click

Validate

to validate the expression.

Click

to exit the

Validate Expression

dialog box.

Click

to exit the

Expression Editor

Complex Operators

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Table of Contents

Big Data Management User Guide

Big Data Management User Guide

Extracting an Array Element Using a Subscript Operator

Extracting an Array Element Using a Subscript Operator