Chapter 16: DataGraph

DataGraph plots both data sets and functions. A data set is part of a larger object known as a data series that contains the coordinate pairs, (x,y), together with drawing attributes such as color and style. Each series is identified by a series number, usually starting at one for the first series. Whenever data are added to the DataGraph, the appropriate series number must be specified.

Note: A series number is not the object identifier that is used in a data connection. Object identifiers are assigned by the operating system whereas series numbers are assigned by the script author. The object identifier for a series can be obtained by calling the getSeriesID method.


The argument to this method is the series number.  The return value is the object identifier.


Fig 60Embedding DataGraph Fig 61Regression analysis.


Additional scripts:

Ex 1Parser functions. Ex 2: Logging data.