Problem Note 49185: SURFACE_VALUE function returns missing values when it should not
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In SAS® Risk Dimensions®, the SURFACE_VALUE function can return missing values when it should not. The problem occurs with 2-dimensional surfaces for which the EXTRAPOLATE=CONSTANT option is specified. If the coordinates in the SURFACE_VALUE call necessitate an extrapolation from a risk factor coordinate, the function returns a missing value.
For example, consider this specification in a PROC RISK step.
declare riskfactors = (
rf1_1 num var coordinates=(dim1=1 dim2=1),
rf2_1 num var coordinates=(dim1=2 dim2=1),
rf1_2 num var coordinates=(dim1=1 dim2=2),
rf2_2 num var coordinates=(dim1=2 dim2=2),
rf1_3 num var coordinates=(dim1=1 dim2=3),
rf2_3 num var coordinates=(dim1=2 dim2=3));
array a surface elements=(rf1_1 rf2_1 rf1_2 rf2_2 rf1_3 rf2_3) extrapolate=constant;
The call b = surface_value( a, 0, 2 );
should always return the value of rf1_2. Instead, it currently returns missing. More generally, the call b = surface_value( a, x, 2 );
returns missing for every value of x<1 and x>2. If the second coordinate (that is, the third argument) were not 2, the value returned by SURFACE_VALUE would be correct.
There is no workaround.
Note: For details about the syntax and function of the SURFACE_VALUE function, see "The COMPILE Procedure" documentation that is in the SAS® Risk Dimensions® Procedures Guide.
Operating System and Release Information
| Product Family | Product | System | Product Release | SAS Release | ||
| Reported | Fixed* | Reported | Fixed* | |||
| SAS System | SAS Risk Dimensions Enterprise Edition | Microsoft® Windows® for x64 | 5.5 | 6.1 | 9.3 TS1M2 | 9.4 TS1M0 |
| Microsoft Windows Server 2003 Datacenter Edition | 5.5 | 6.1 | 9.3 TS1M2 | 9.4 TS1M0 | ||
| Microsoft Windows Server 2003 Enterprise Edition | 5.5 | 6.1 | 9.3 TS1M2 | 9.4 TS1M0 | ||
| Microsoft Windows Server 2003 Standard Edition | 5.5 | 6.1 | 9.3 TS1M2 | 9.4 TS1M0 | ||
| Microsoft Windows Server 2003 for x64 | 5.5 | 6.1 | 9.3 TS1M2 | 9.4 TS1M0 | ||
| Microsoft Windows Server 2008 | 5.5 | 6.1 | 9.3 TS1M2 | 9.4 TS1M0 | ||
| Microsoft Windows Server 2008 for x64 | 5.5 | 6.1 | 9.3 TS1M2 | 9.4 TS1M0 | ||
| Microsoft Windows XP Professional | 5.5 | 6.1 | 9.3 TS1M2 | 9.4 TS1M0 | ||
| Windows 7 Enterprise 32 bit | 5.5 | 6.1 | 9.3 TS1M2 | 9.4 TS1M0 | ||
| Windows 7 Enterprise x64 | 5.5 | 6.1 | 9.3 TS1M2 | 9.4 TS1M0 | ||
| Windows 7 Home Premium 32 bit | 5.5 | 6.1 | 9.3 TS1M2 | 9.4 TS1M0 | ||
| Windows 7 Home Premium x64 | 5.5 | 6.1 | 9.3 TS1M2 | 9.4 TS1M0 | ||
| Windows 7 Professional 32 bit | 5.5 | 6.1 | 9.3 TS1M2 | 9.4 TS1M0 | ||
| Windows 7 Professional x64 | 5.5 | 6.1 | 9.3 TS1M2 | 9.4 TS1M0 | ||
| Windows 7 Ultimate 32 bit | 5.5 | 6.1 | 9.3 TS1M2 | 9.4 TS1M0 | ||
| Windows 7 Ultimate x64 | 5.5 | 6.1 | 9.3 TS1M2 | 9.4 TS1M0 | ||
| Windows Vista | 5.5 | 6.1 | 9.3 TS1M2 | 9.4 TS1M0 | ||
| Windows Vista for x64 | 5.5 | 6.1 | 9.3 TS1M2 | 9.4 TS1M0 | ||
| 64-bit Enabled AIX | 5.5 | 6.1 | 9.3 TS1M2 | 9.4 TS1M0 | ||
| 64-bit Enabled HP-UX | 5.5 | 6.1 | 9.3 TS1M2 | 9.4 TS1M0 | ||
| 64-bit Enabled Solaris | 5.5 | 6.1 | 9.3 TS1M2 | 9.4 TS1M0 | ||
| HP-UX IPF | 5.5 | 6.1 | 9.3 TS1M2 | 9.4 TS1M0 | ||
| Linux | 5.5 | 6.1 | 9.3 TS1M2 | 9.4 TS1M0 | ||
| Linux for x64 | 5.5 | 6.1 | 9.3 TS1M2 | 9.4 TS1M0 | ||
| Solaris for x64 | 5.5 | 6.1 | 9.3 TS1M2 | 9.4 TS1M0 | ||
| Type: | Problem Note |
| Priority: | medium |
| Date Modified: | 2013-04-05 11:16:05 |
| Date Created: | 2013-02-15 11:44:05 |