Analysis View

Menu Option: View: Analysis View
See Also: View Bar


The Analysis View is used to:

Data Entry Tables

The data entry tables are used to enter expressions that define the Current Accounts values (base year and historical data) of variables and the future values of each variable for a given scenario. Depending on which tree branches you click on the left of the screen, different data variables will be displayed for editing on the right. For example, when editing demand sectors you will see tabs giving access to "Activity Levels" while at the lowest levels of the tree you will also see tabs for "Final Energy Intensity" and "Environmental Loadings".  

These variables can be accessed in two different ways:

Use the three selection boxes above the data entry table to select the variable, scenario and region (in a multi-region area) that you wish to edit.  You can also choose to edit all variables (for the current tree branch), all regions, or all scenarios simultaneously.  

In general, the rows of each data entry table correspond to the tree branches immediately below the one you clicked on in the tree. For example, if you clicked on the Transformation branch, you will see information about all of the modules in your Transformation analysis. Similarly, if you click on the demand branch for the household sector, the rows of the data entry table will show information about household subsectors (e.g. urban, rural, depending on the structure you develop). Note though, that when editing Demand activity levels, LEAP also shows you a series of indented rows, which also shows you the activity levels in higher level branches.

Each data entry table is color coded to show you which fields can and cannot be edited be edited. Fields with a white background can be edited, while fields with a gray background cannot. Color coding is also used to show you which expressions have been entered explicitly in the current scenario, and which are inherited either from a parent scenario, from another region or from the data specified for Current Accounts.  This works as follows:

The columns of information shown in most data entry tables are broadly similar. You will normally see the following columns:

Data entry tables for some variables have additional columns. For example, demand energy intensity branches also require that you select the fuel associated with a demand device .

Check As You Type Expression Validation

By default, LEAP's Analysis View employs "Check as You Type" expression validation.  This feature actively checks the expressions you enter in real-time.  Any errors in an expression are revealed by causing the expression to be displayed in red italicized text. In addition, an error message describing the error is displayed in a toolbar immediately below the data entry table. Click the Check as You Type button to turn this feature off and on.

Chart,   Table Tabs

The bottom pane of the analysis view displays the data you entered in the top pane as either a chart or a table. The chart and table views let you quickly examine the values generated by the expressions you have entered above. The chart and table toolbars on the right of the pane gives access to a range of options for formatting charts and tables (e.g. picking chart type and stacking options, colors, grid lines, number of decimal places, font size, etc.) and for printing and copying charts and tables, exporting tables to Microsoft Excel, and exporting charts to Microsoft PowerPoint.

Notes Tab

The bottom pane also gives access to the Notes screen: a word processing tool in which you can enter documentation and references for each branch of the tree. To edit the notes, right-click and select Edit to display the notes in a larger window, which includes a basic set of word processing controls. Notes can include formatting (bold, underline, fonts, etc.) and can also include standard Windows "objects" such as spreadsheets. The notes view is linked to the References database, providing a centralized facility for referencing your data and assumptions. To edit the list of References, use the New (), Add ()and Delete () buttons to link to the References database.

Expression Builder Tab

The builder tab gives you additional space for editing complex expressions, compared to the data table at the top of the screen.  In addition to having more space it also automatically displays a pane with help relevant to the function you are writing.  As you position the edit cursor within a particular function, the help page for that function is shown on the right-hand side of the builder.  While editing expression in the builder you can format your expressions as multi-line equations, freely using carriage returns to make the expression more readable.  The Expression Builder includes a toolbar that gives quick access to editing options such as Cut (), Copy (), Paste () and Undo ().  It also gives quick access to various wizards that can help you build your expressions, including (where appropriate) the Time-Series wizard (), the Function Builder () and the Branch/Variable selection wizard ().

Once an expression is compete, press the Submit button to move the completed expression back into the data table at the top of the screen.  

Expression Elaboration tab

Expression Elaboration is a tab marked with the button in the bottom pane of the Analysis View screen.  It elaborates on complex expressions: ones that refer to other branches and variables.   

Help Tab

The Help tab in the bottom pane of the Analysis View gives immediate access to the help system for whatever variable the user is editing.   

Managing Scenarios

In the main tool bar you will find the Scenarios button. Click this to access the Manage Scenarios screen, which is used to manage and create scenarios.