training exercises - Tellus Institute

each branch in the tree. As you click on different branches in the tree, the data screen
shows the data associated with branches at and immediately below the branch in the
tree. Each row in the table represents data for a branch in the tree. For example, in
the sample data set click on the “Demand” branch in the tree, and the data screen lists
the sectors of your demand analysis, then click on “Households” in the tree and the
data screen summarizes the household subsectors (in this case urban and rural).
At the top of the table is a set of “tabs” giving access to the different variables
associated with each branch. The tabs you see depend on how you specified your data
structures, and on what part of the tree you are working on. For example, when
editing demand sectors you will normally see tabs giving access to “Activity Level”
and “Demand Costs”; while at the lowest levels of the tree you will also see tabs for
“Final Energy Intensity” and “Environmental Loading” data.
• Chart/Table/Notes: The lower pane summarizes the data entered above as a chart or
a table. When viewing charts, use the toolbar on the right to customize the chart.
Graphs can be displayed in various formats (bar, pie, etc.), printed, or copied to the
clipboard for insertion into a report. The toolbar also allows you to export the data to
Excel or PowerPoint.
• Scenario Selection Box: Above the data table is a selection box, which you can use
to select between Current Accounts and any of the scenarios in an area. Current
Accounts data is the data for the base year of your study. Different scenarios in LEAP
all begin from the base year. This box also shows you the basic inheritance of each
scenario. In LEAP, scenarios can inherit modeling expressions from other scenarios.
All scenarios ultimately inherit expressions from the Current Accounts data set. In
other words, unless you specifically enter scenario data for a variable, its value will be
constant in the future.
To create a new scenario, click on Manage Scenarios ( ). When you create a new
scenario, you can specify that it be based on (i.e. inherits from) another scenario.
Until you change some expressions in the new scenario, it will give exactly the same
results as its parent scenario. Expressions displayed in the data table are color-coded
so you can tell if they were explicitly entered in the scenario (colored blue) or if they
are inherited from the parent scenario (colored black).
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