IntegrationNumerical integration of data can be done specifying one of the methods
rectangle (1-point) rule
trapezoid (2-point) rule
Simpson-1/3 (3-point) rule
Simpson-3/8 (4-point) rule
The default method (trapezoid) should be suitable for most cases. The number of resulting data points is reduced for both Simpson-rules due to the properties of these methods.