Tuple Serial Correlation

The Tuple Serial Correlation operator provides correlation of sequential events; that is, the operator uses a specification of a number of events from an existing stream to create a stream that contains larger events.

Assume that you have a stream of transactions of a stock, and you want to compute a new stream in which each event is composed of three consecutive events from the original stream. Using the latest two stock prices as output, you can build a trading model that predicts the next stock prices.

To Create a Tuple Serial Correlation Operator

1. Drag a Tuple Serial Correlation operator from the Palette to the Design view.

2. Double-click the Tuple Serial Correlation operator.

   The property editor opens.

3. In the Increment field, enter how often you want to obtain events via the Tuple Serial Correlation operator, based on the number of events.

4. In the Size field, specify the number of small consecutive events that you want to add to the larger cumulative event.

5. Click OK.