Overview: Rate of Change

This operation measures the rate of change between data points of the input fields. This feature is useful when analyzing trends in the data.

The rate of change is calculated from the difference between the current value and the previous value of the field, divided by the period between the points.

Properties

Category:	Add
Performance risk:	High potential performance risk. The performance is influenced by the size of the text file being imported, which is determined by number of rows and/or the number of columns of the dataset.
Knowledge required:	Working knowledge of the software

Effect on datasets

How many datasets are required to perform this operation?	One
Does it create a new dataset?	No
Can you reconfigure this operation?	Yes
Can you apply this operation to a locked dataset?	No
Does it modify the current dataset in any way?	Yes

Requirements

Any dataset that is not locked.
This operation requires double or integer fields.

Results

The rate of change will be calculated, and the fields containing the ROC values will be added to the database.