Introduction
The Regression Activity allows you to view correlations on a Site, view the CUSUM and set targets based on the CUSUM and Regression. This activity is not available from the main Activity Menu; it is only available via right click of a Site or through the Site Overview activity.
Navigation
Click on the Site in the Site Overview Activity
Click Actions in the top right of the screen to allow you to navigate to other activities within Sigma including Regression
Click on Regression
Alternatively, right-click on a Site and select Regression from the menu
Regression Correlations
Automatic Regressions
Sigma will automatically check the system to find any correlations with an R2 value of 0.9 or greater.
Correlations will be between two data points and those found automatically will display as follows:
Manual Regressions
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To view the regression correlation, right-click the image and select 
or double-click the regression image
You will now see three tabs - Regression, CUSUM and Control Chart
Regression
Graph
- The graph plots the Dependent Data against the Independent Data and draws a line of best fit
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The table and charts can be saved by clicking 
CUSUM
Click on 
Graph
The graph shows the cumulative data based on the CUSUM period.
Clicking and dragging your mouse over the graph will zoom into the data.
Overview
The Overview chart (bottom of the screen) shows the dependent data and independent data for the CUSUM period and part of the historic period too
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When the CUSUM period is changed then anything above the 0 value based on the regression period will be calculated and listed in both kWh's and CO2.
Data Analysis
Tick the Show V-Mask box to add a V-Mask target onto the CUSUM. To confirm target creation select 
in the resulting popup window
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Tick Show Fixed Targets to add a CUSUM fixed target. To confirm target creation select in the resulting popup window.
CUSUM Period
Use the start date to choose the start period for the graph, either selecting the drop down boxes or the calendar icon 
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