The user can view the output for the distribution fitting analysis directly from the Distribution Fitting Analysis editor (tabular and graphical output).

Tabular Output

Once a distribution | fitting method combination has been accepted, the user can view the tabular output by selecting the Results tab. Tabular results can be opened by double clicking on the plot in the Results tab and in the opened plot selecting File | Tabulate.

Graphical Output

Graphical output of the distribution fitting analysis can be obtained by selecting the Results tab. The CDF, PDF, and/or CDF-Plotting Position plot can be opened in a new window by double clicking on the plot, as shown in Figure 1. The distribution fitting plot can be sent to the printer by selecting the Print option from the File menu at the top of the window. Additional printing options available from the File menu are Page Setup, Print Preview, and Print Multiple (used for printing multiple graphs on the same page). Additionally, the plot can be saved to a file by selecting the Save As option from the File menu. When the Save As option is selected, a window will appear allowing the user to select a directory, enter a filename, and select the format for saving the file. Currently, four file formats are available for saving the graphic to disk: windows metafile, postscript, JPEG, and portable network graphic.

Figure 1. Distribution Fitting Results CDF-Plotting Position Plot.

As explained previously, the data contained within the plot can also be tabulated by selecting Tabulate from the File menu. When this option is selected, a separate window will appear with the data tabulated. Additional options are available from the File menu for saving the plot options as a template (Save Template) and applying previously saved templates to the current plot (Apply Template).

The Edit menu contains several options for customizing the graphic. These options include Plot Properties, Configure Plot Layout, Default Line Styles, and Default Plot Properties. In addition, a shortcut menu will appear with further customizing options when the user right-clicks on a line on the graph or the legend. Both the Y and X-axis properties can be edited by placing the mouse on top of the axis and clicking the right mouse button. Then select the Edit Properties menu option in the shortcut menu. For example, the user can turn on minor tic marks for the y-axis and modify the minimum and maximum scale for the x-axis. The graphic customizing capabilities within HEC-SSP are very powerful, but are also somewhat complex to use. The code used in developing the plots in HEC-SSP is the same code that is used for developing plots in HEC-DSSVue and several other HEC software programs. Please refer to the HEC-DSSVue User's Manual for details on customizing plots.

Viewing the Report File

A report file is created when the distribution fitting analysis computations are performed. The report file lists the input data, user settings, and the results.

Press the View Report button at the bottom of the Distribution Fitting Analysis editor to view the report file. When this button is pressed, a window will appear containing the report as shown in Figure 2.

The original data, filtered data, parameterized distributions, goodness of fit test statistics, and accepted distribution | fitting method combination is contained within the Report output. Additionally, the distribution fitting report can be opened using the Results | Report option in the Results dropdown menu at the top of the SSP window.

Figure 2. Distribution Fitting Analysis Report File.