2.7 - Dialog Boxes

Dialog boxes have several features in common. They are exemplified by the Harvest Rate Scalars dialog box shown here. All of its elements are summarized in the table on the next page.

In general, these dialog boxes are used to change parameter values. For example, the Proportion Not Vulnerable (PNV) of Age 2 fish in 1996 for the Alaska Troll Fishery can be specifically altered from the default values read into the model at start-up from the *.pnv file (see "Getting Started"). When the dialog boxes are opened they show the default values. The parameter values are altered individually or in groups by one or more of the following methods:

• moving sliders
• clicking on scrollbar arrows
• typing in value boxes
• grouping different parameters so that the change of a single value affects other values absolutely or relatively.

Feature	Name	Description (using Harvest Rate Scalars dialog box as an example)
	Fishery	Choose a Fishery to which Harvest Rate Scalars will apply. The drop-down menu has the entire list of Fisheries recognized by the model. When a Fishery is highlighted you can use up and down keys to scroll up and down the list. Note: It is possible to select combinations of Fishery and Stock that never interact.
	Stock	Choose a Stock to which Harvest Rate scalars will apply. The drop-down menu has the entire list of Stocks recognized by the model. When a Stock is highlighted you can use up and down keys to scroll up and down the list. Note: It is possible to select combinations of Fishery and Stock that never interact.
	Year groups	Toggle on the tabs to display different year groupings. (Putting them all on display at once could make the dialog boxes very large!)
	Delta	When checked, all linked values change linearly instead of proportionally, adding the difference between the new and old value to all linked values
	Dulled Year	The Harvest Rate Scalars for this year are part of the calibration data and can not be adjusted from the dialog box
	Bold Year	The Harvest Rate Scalars for this year can be adjusted by using the Slider, Value box, Y box, F box and S box methods described below.
	Slider	Use the slider to adjust the Harvest Rate Scalars (displayed in the Value box) with the mouse pointer. Left-click and hold left and right arrows to adjust the value, or click and drag the central slider to the desired value.
	Value Box	Displays current value of the Harvest Rate Scalar for that Year for the particular stock shown in the Stock Select area and the fishery shown in the Fishery Select area unless the Y, F, and/or S box is selected on that line. These values persist between uses of the dialog box if Apply or OK is chosen during this run of the model.
	Y box	Check box used to set the Harvest Rate Scalars for a group of years to a common value in the selected Fisher(y/ies) and Stock(s). When selected, all checked years are adjusted as a group to the shared value set the next time any one of them is altered. The Y box at the top of the column selects or de-selects the entire range (all years) of Y boxes. This box can be used in conjunction with other check boxes. The settings of the Y boxes do not persist in-between uses of the dialog box.
	F box	Check box used to set the Harvest Rate Scalars for a group of Fisheries to a common value for the selected year(s) and the selected Stock(s). It is analogous to the Y box described above.
	S box	Check box used to set the Harvest Rate Scalars for a group of Stocks to a common value for the selected year(s) and the selected fisheries. It is analogous to the Y box described above.
	Help	Opens the Manual in a separate window.
	Reset	Resets the dialog box to the last applied values. Note that this does not reset values to those from the input files used when the program was first launched.
	Apply	Incorporates changes into the next model run.
	Cancel	Resets and closes the dialog box.
	OK	Incorporates changes in the next model run and closes the dialog box.
	Forced box	Only appears in the Catch Ceilings dialog box (Fishery menu). Used to make the modeled catch equal to the catch ceiling even if the unconstrained catch is below the ceiling. In practice, Forced catches are generally used for the calibration period to force the catches to equal the observed catches. Unforced catches are more likely to be used for simulations.