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Documentation

Variable Comparison

Require: IP-Symcon >= 6.0

This module was sponsored by IB-Jaetzel.

The module creates a graph of point clouds based on one or more pairs of variables and a line through the point cloud using simple linear regression. The diagram can be output as SVG or PNG.

feature

  • Create a diagram with one or more pairs of values
  • Output of the diagram as SVG or PNG
  • Output of slope, y-axis intercept, function and coefficient of determination of the graph

software installation

  • Via the Module Store install the 'VariableComparison' module.

Set up instances in IP-Symcon

  • Under 'Add Instance' the 'VariableComparison' module can be found using the quick filter.

Configuration Page:

Values:

name description
X value Variable selection for the X axis
Y value Variable selection for the Y axis
point Color selection for the point macro
Line Color selection for the line
Aggregation Level Level of how detailed the data is fetched from the archive

Diagram settings:

Name Description
Axes small steps Specifies in which steps small markings should be
Axes large steps Specifies in which steps the marking with labeling is
Width Specifies how wide the diagram is
Height Indicates how high the diagram is
Y - Min Indicates the minimum value on the Y-axis
Y - Max Indicates the maximum value on the Y-axis
X - Min Indicates the minimum value on the X-axis
X - Max Indicates the maximum value on the X-axis
Digram Format Specifies whether the diagram should be output as SVG or PNG

status variables

The status variables/categories are created automatically. Deleting individual ones can lead to malfunctions.

Status variables

Name Type Description
Function string Specifies the mathematical function of the graph
b Float Describes the y-axis intercept of the graph
m Float Describes the slope of the graph
Coefficient of determination Float Describes how exactly the graph fits the point cloud
Start Date Integer Date from which the point cloud should start
End Date Integer Date to which the point cloud goes
Chart String / Media Returns the chart as PNG or SVG depending on the setting
Any questions?