After using the Create TOPS interface, the user can move on to utilize other interfaces in the Sample Adequacy tab. The Sample Risk Analysis is one available interface. If a stratum is oversampled, retaining a surplus could be warranted if a stratum is at risk of losing multiple samples. The Sample Risk interface helps determine if a stratum has potential to lose samples by showing which samples are at risk of migrating to a lower or higher range volume group. In order to open this interface, the user can locate the icon on the Sample Adequacy tab and section. 

Risk Analysis Parameters

In the Risk Analysis Parameters section, users can set a percentage to identify samples within a certain range of the upper or lower bounds of a Volume Group. This field is required to perform an analysis.

Optional Filters

Two optional filters are available to narrow the results. Both of these filters are located directly below the Risk Analysis Parameters. 

1. The ability to filter stratums that do not have a certain percentage of at-risk samples. To apply this filter, check the “% of the Number of Required Samples” checkbox, select a query operator (>, <, >=, <=, or =) in the dropdown, and specify a percentage in the textbox.
2. The ability to filter stratums that do not have a certain number of at-risk samples. To apply this filter, check the “Show Stratums At Risk Samples” checkbox, select a query operator (>, <, >=, <=, or =) in the dropdown, and specify an amount in the textbox.

Tables

After the required Risk Analysis Parameter and optional filters are set, the user can select the “Perform Analysis” button. This will populate the table below the parameters and filters, called the Sample Risk Stratum Table, with information based on the parameters specified. Then, the user can select a row in this table to populate the Sample Risk Detail Table. This table will be titled, Sample [Urban Code/ FSystem/ Volume Group]. Any samples at risk of leaving will appear in red.