, and then choose Unit editor.Use the Unit Editor dialog box to create and delete units of measure for your model.
To open this dialog box, use one of the following methods:
, and then choose Unit editor.
Displays a list of the Unit definitions that are built into Stella. These are commonly used units that are included for your convenience. The Unit Name appears first, followed by the Unit Equation and Unit Aliases in parentheses. You can't change the default units, though you can extend them by adding new aliases as described inCreating and deleting unit definitions.
Displays a list of the Unit definitions you have created. These are applied to every model you work with. To edit one of these double click and it will go into the editing controls. To delete click on the x at the right.
Displays a list of the Unit definitions contained in the model only. You can create these specifically, and they may also appear in models you get from other people. Unit definitions in this category may have been in the My Units category of the model author. To edit one of these double click and it will go into the editing controls. To delete click on the x at the right.
You can move a Unit definition from My Units to Model Specific Units by highlighting it and clicking on the >> button. You can move one back by clicking on the << button.
Note:If you remove a Unit definition from My Units it will not be used in new models you create. If, however, it is used in a model other than the one currently opened, it will still be used, but will be kept in the Model Specific Units list.
Type a unique name for the new unit of measure. The name can't be used by any other Unit definition in any category. The name must begin with a letter and contain only letters, numbers and $. You can include spaces or underbars in the name interchangeably, with one or more of either treated the same as a single space in comparing unit names (that it a____b and a_b are considered the same when comparing units).
Type the equation for the unit. If you leave the box blank, you must enter an alias. You can make a new unit equivalent to an existing unit by entering the existing unit name.
For more information about creating equations, see Creating equations for units .
Enter a comma separated list of equivalent names for the Unit you are defining. This list can be empty if you have specified an equation, but one of an equation or an alias is required. If you simply want to use a name for a unit of measure enter it directly in the Units entry for the model variable, you do not need to define it first.
Click this button to add the new unit of measure to the "My Units" list. The entries you have made will be validated when you do this.
Click this button to add the new unit of measure to the "Model Specific Units" list. The entries you have made will be validated when you do this.