The HPSEVERITY Procedure

Displayed Output

PRINT= Option
Performance Information

The HPSEVERITY procedure optionally produces displayed output by using the Output Delivery System (ODS). All output is controlled by the PRINT= option in the PROC HPSEVERITY statement. Table 5.7 relates the ODS tables to PRINT= options.

Table 5.7: ODS Tables Produced in PROC HPSEVERITY

ODS Table Name	Description	Option
AllFitStatistics	Statistics of fit for all the distribution models	PRINT=ALLFITSTATS
ConvergenceStatus	Convergence status of parameter estimation process	PRINT=CONVSTATUS
DescStats	Descriptive statistics for the response variable	PRINT=DESCSTATS
DistributionInfo	Distribution information	PRINT=DISTINFO
EstimationDetails	Details of the estimation process for all the distribution models	PRINT=ESTIMATIONDETAILS
InitialValues	Initial parameter values and bounds	PRINT=INITIALVALUES
IterationHistory	Optimization iteration history	PRINT=NLOHISTORY
ModelSelection	Model selection summary	PRINT=SELECTION
OptimizationSummary	Optimization summary	PRINT=NLOSUMMARY
ParameterEstimates	Final parameter estimates	PRINT=ESTIMATES
PerformanceInfo	Execution environment information that pertains to the computational performance	Default
RegDescStats	Descriptive statistics for the regressor variables	PRINT=DESCSTATS
StatisticsOfFit	Statistics of fit	PRINT=STATISTICS
Timing	Timing information for various computational stages of the procedure	DETAILS (PERFORMANCE statement)

PRINT= Option

If the PRINT= option is not specified, then by default PROC HPSEVERITY produces the ModelSelection, PerformanceInfo, ConvergenceStatus, OptimizationSummary, StatisticsOfFit, and ParameterEstimates ODS tables.

You can specify the following values for the PRINT= option:

PRINT=ALLFITSTATS: displays the comparison of all the statistics of fit for all the models in one table. The table does not include the models whose parameter estimation process does not converge. If all the models fail to converge, then this table is not produced. If the table contains more than one model, then the best model according to each statistic is indicated with an asterisk (*) in that statistic’s column.
PRINT=CONVSTATUS: displays the convergence status of the parameter estimation process.
PRINT=DESCSTATS: displays the descriptive statistics for the response variable. If regressor variables are specified, a table with their descriptive statistics is also displayed.
PRINT=DISTINFO: displays the information about all the candidate distribution. It includes the name, the description, the number of distribution parameters, and whether the distribution is valid for the specified modeling task.
PRINT=ESTIMATES: displays the final estimates of parameters. The estimates are not displayed for models whose parameter estimation process does not converge.
PRINT=ESTIMATIONDETAILS: displays the comparative details of the estimation process that is used to fit each candidate distribution. If you specify the DETAILS option in the PERFORMANCE statement, then this table contains a column that indicates the time taken to estimate each candidate model.
PRINT=INITIALVALUES: displays the initial values and bounds used for estimating each model.
PRINT=NLOHISTORY: displays the iteration history of the nonlinear optimization process used for estimating the parameters.
PRINT=NLOSUMMARY: displays the summary of the nonlinear optimization process used for estimating the parameters.
PRINT=SELECTION: displays the model selection table. The table shows the convergence status of each candidate model, and the value of the selection criterion along with an indication of the selected model.
PRINT=STATISTICS: displays the statistics of fit for each model. The statistics of fit are not displayed for models whose parameter estimation process does not converge.

Performance Information

The “Performance Information” table is produced by default. It displays information about the execution mode. For single-machine mode, the table displays the number of threads used. For distributed mode, the table displays the grid mode (symmetric or asymmetric), the number of compute nodes, and the number of threads per node.

If you specify the DETAILS option in the PERFORMANCE statement, the procedure also produces a “Timing” table in which elapsed times (absolute and relative) for the main tasks of the procedure are displayed.