Problem Note 63056: PROC LIFETEST saves event time values of zero as 1.49167E-154
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Event time or failure time values of zero are saved in the OUTSURV=, SURVIVALPLOT=, and FAILUREPLOT= output data sets as 1.49167E-154 in PROC LIFETEST.
As a workaround, you can use the ROUND function to correct the nonzero values. For example, suppose the OUTSURV= data set is named SURV and the event time variable in the TIME statement is T:
data surv;
set surv;
T=round(T, 1e-10);
run;
set surv;
T=round(T, 1e-10);
run;
Operating System and Release Information
| Product Family | Product | System | Product Release | SAS Release | ||
| Reported | Fixed* | Reported | Fixed* | |||
| SAS System | SAS/STAT | z/OS | 14.3 | 15.1 | 9.4 TS1M5 | 9.4 TS1M6 |
| z/OS 64-bit | 14.3 | 15.1 | 9.4 TS1M5 | 9.4 TS1M6 | ||
| Microsoft® Windows® for x64 | 14.3 | 15.1 | 9.4 TS1M5 | 9.4 TS1M6 | ||
| Microsoft Windows 8 Enterprise 32-bit | 14.3 | 15.1 | 9.4 TS1M5 | 9.4 TS1M6 | ||
| Microsoft Windows 8 Enterprise x64 | 14.3 | 15.1 | 9.4 TS1M5 | 9.4 TS1M6 | ||
| Microsoft Windows 8 Pro 32-bit | 14.3 | 15.1 | 9.4 TS1M5 | 9.4 TS1M6 | ||
| Microsoft Windows 8 Pro x64 | 14.3 | 15.1 | 9.4 TS1M5 | 9.4 TS1M6 | ||
| Microsoft Windows 8.1 Enterprise 32-bit | 14.3 | 15.1 | 9.4 TS1M5 | 9.4 TS1M6 | ||
| Microsoft Windows 8.1 Enterprise x64 | 14.3 | 15.1 | 9.4 TS1M5 | 9.4 TS1M6 | ||
| Microsoft Windows 8.1 Pro 32-bit | 14.3 | 15.1 | 9.4 TS1M5 | 9.4 TS1M6 | ||
| Microsoft Windows 8.1 Pro x64 | 14.3 | 15.1 | 9.4 TS1M5 | 9.4 TS1M6 | ||
| Microsoft Windows 10 | 14.3 | 15.1 | 9.4 TS1M5 | 9.4 TS1M6 | ||
| Microsoft Windows Server 2008 | 14.3 | 9.4 TS1M5 | ||||
| Microsoft Windows Server 2008 R2 | 14.3 | 9.4 TS1M5 | ||||
| Microsoft Windows Server 2008 for x64 | 14.3 | 9.4 TS1M5 | ||||
| Microsoft Windows Server 2012 Datacenter | 14.3 | 15.1 | 9.4 TS1M5 | 9.4 TS1M6 | ||
| Microsoft Windows Server 2012 R2 Datacenter | 14.3 | 15.1 | 9.4 TS1M5 | 9.4 TS1M6 | ||
| Microsoft Windows Server 2012 R2 Std | 14.3 | 15.1 | 9.4 TS1M5 | 9.4 TS1M6 | ||
| Microsoft Windows Server 2012 Std | 14.3 | 15.1 | 9.4 TS1M5 | 9.4 TS1M6 | ||
| Microsoft Windows Server 2016 | 14.3 | 15.1 | 9.4 TS1M5 | 9.4 TS1M6 | ||
| Windows 7 Enterprise 32 bit | 14.3 | 15.1 | 9.4 TS1M5 | 9.4 TS1M6 | ||
| Windows 7 Enterprise x64 | 14.3 | 15.1 | 9.4 TS1M5 | 9.4 TS1M6 | ||
| Windows 7 Home Premium 32 bit | 14.3 | 15.1 | 9.4 TS1M5 | 9.4 TS1M6 | ||
| Windows 7 Home Premium x64 | 14.3 | 15.1 | 9.4 TS1M5 | 9.4 TS1M6 | ||
| Windows 7 Professional 32 bit | 14.3 | 15.1 | 9.4 TS1M5 | 9.4 TS1M6 | ||
| Windows 7 Professional x64 | 14.3 | 15.1 | 9.4 TS1M5 | 9.4 TS1M6 | ||
| Windows 7 Ultimate 32 bit | 14.3 | 15.1 | 9.4 TS1M5 | 9.4 TS1M6 | ||
| Windows 7 Ultimate x64 | 14.3 | 15.1 | 9.4 TS1M5 | 9.4 TS1M6 | ||
| 64-bit Enabled AIX | 14.3 | 15.1 | 9.4 TS1M5 | 9.4 TS1M6 | ||
| 64-bit Enabled Solaris | 14.3 | 15.1 | 9.4 TS1M5 | 9.4 TS1M6 | ||
| HP-UX IPF | 14.3 | 15.1 | 9.4 TS1M5 | 9.4 TS1M6 | ||
| Linux for x64 | 14.3 | 15.1 | 9.4 TS1M5 | 9.4 TS1M6 | ||
| Solaris for x64 | 14.3 | 15.1 | 9.4 TS1M5 | 9.4 TS1M6 | ||
When there are event times at zero, PROC LIFETEST saves slightly non-zero values in the OUTSURV= , SURVIVALPLOT=, and FAILUREPLOT= output data sets.
| Type: | Problem Note |
| Priority: | medium |
| Topic: | Analytics ==> Survival Analysis SAS Reference ==> Procedures ==> LIFETEST |
| Date Modified: | 2018-10-24 11:03:28 |
| Date Created: | 2018-10-11 07:33:06 |