Installation Note 60164: Using the DS2 random variate function in SAS® Event Stream Processing 4.x fails and returns the "Unknown function RAN*" message
 |  |  |  |
SAS Event Stream Processing is able to process DS2 code in either DS2 Window Handler mode or SAS® Micro Analytic Service modules. However, when using SAS Event Stream Processing 4.x, you might find that the DS2 random number variate functions are not recognized and the Unknown function RAN* error occurs.
For example, using the RANUNI function in either a DS2 Window Handler or SAS Micro Analytic Service module in SAS Event Stream Processing 4.x results in the following error message:
Beginning in SAS Event Stream Processing 4.x, RAN* functions are no longer supported. The RAND(*) suite of functions is now the recommended alternative for any RAN* function. For more details about RAND functions, see the "RAND Function" section of SAS® 9.4 DS2 Language Reference, Sixth Edition.
Note: The RAN* functions still function normally in SAS Event Stream Processing 3.x.
The following RAN* functions are not recognized by SAS Event Stream Processing 4.x: RANBIN, RANCAU, RANEXP, RANGAM, RANNOR, RANPOI, RANTBL, RANTRI, and UNIFORM.
Note: The UNIFORM function is an alias function for RANUNI.
This table maps the RAN* functions to the updated RAND(*) functions:
| RAN* Function | RAND(*) Function |
| RANBIN() | RAND('BINOMIAL',p,n) |
| RANCAU() | RAND('CAUCHY') |
| RANEXP() | RAND('EXPONENTIAL') |
| RANGAM() | RAND('GAMMA',a) |
| RANNOR() | RAND('NORMAL') |
| RANPOI() | RAND('POISSON',m) |
| RANTBL() | RAND('TABLE',p1,p2,...) |
| RANTRI() | RAND('TRIANGLE',h) |
| RANUNI() | RAND('UNIFORM') |
| UNIFORM() | RAND('UNIFORM') |
Note: If you want to create reproducible streams of pseudo-random numbers, then specify STREAMINIT before any calls to the RAND pseudo-random number function. See the SAS® 9.4 DS2 Language Reference, Sixth Edition for more details about the STREAMINIT function.
Operating System and Release Information
| Product Family | Product | System | Product Release | SAS Release | ||
| Reported | Fixed* | Reported | Fixed* | |||
| SAS System | SAS Event Stream Processing Engine | Linux for x64 | 4.1 | |||
| Microsoft® Windows® for x64 | 4.1 | |||||
| Type: | Installation Note |
| Priority: | medium |
| Date Modified: | 2017-04-03 10:00:41 |
| Date Created: | 2017-03-21 14:10:20 |