When there are more than 24 statistically different groups and the LINES or LINESTABLE option is specified in the LSMEANS or SLICE statement, PROC PLM might report either of the following messages:

Alternatively, under the same conditions, a letter grouping in the range A to Y might be used more than once.

This problem can occur when the item store is generated in any of the following procedures:

SAS/QC^® software

• RELIABILITY

SAS/STAT^® software

• GEE
• GENMOD
• GLIMMIX
• GLM
• LIFEREG
• LOGISTIC
• MIXED
• ORTHOREG
• PHREG
• PLM
• PROBIT
• SURVEYLOGISTIC
• SURVEYPHREG
• SURVEYREG

There is no circumvention for this problem.

Click the Hot Fix tab in this note to access the hot fix for this issue.

Operating System and Release Information

Product Family	Product	System	Product Release		SAS Release
			Reported	Fixed*	Reported	Fixed*
SAS System	SAS/STAT	Solaris for x64	9.22		9.2 TS2M3
		OpenVMS on HP Integrity	9.22		9.2 TS2M3
		Linux for x64	9.22		9.2 TS2M3
		Linux	9.22		9.2 TS2M3
		HP-UX IPF	9.22		9.2 TS2M3
		64-bit Enabled Solaris	9.22		9.2 TS2M3
		64-bit Enabled HP-UX	9.22		9.2 TS2M3
		64-bit Enabled AIX	9.22		9.2 TS2M3
		Windows Vista for x64	9.22		9.2 TS2M3
		Windows Vista	9.22		9.2 TS2M3
		Windows 7 Ultimate x64	9.22		9.2 TS2M3
		Windows 7 Ultimate 32 bit	9.22		9.2 TS2M3
		Windows 7 Professional x64	9.22		9.2 TS2M3
		Windows 7 Professional 32 bit	9.22		9.2 TS2M3
		Windows 7 Home Premium x64	9.22		9.2 TS2M3
		Windows 7 Home Premium 32 bit	9.22		9.2 TS2M3
		Windows 7 Enterprise x64	9.22		9.2 TS2M3
		Windows 7 Enterprise 32 bit	9.22		9.2 TS2M3
		Microsoft Windows XP Professional	9.22		9.2 TS2M3
		Microsoft Windows Server 2008 for x64	9.22		9.2 TS2M3
		Microsoft Windows Server 2008 R2	9.22		9.2 TS2M3
		Microsoft Windows Server 2008	9.22		9.2 TS2M3
		Microsoft Windows Server 2003 for x64	9.22		9.2 TS2M3
		Microsoft Windows Server 2003 Standard Edition	9.22		9.2 TS2M3
		Microsoft Windows Server 2003 Enterprise Edition	9.22		9.2 TS2M3
		Microsoft Windows Server 2003 Datacenter Edition	9.22		9.2 TS2M3
		Microsoft® Windows® for x64	9.22		9.2 TS2M3
		Microsoft Windows XP 64-bit Edition	9.22		9.2 TS2M3
		Microsoft Windows Server 2003 Enterprise 64-bit Edition	9.22		9.2 TS2M3
		Microsoft Windows Server 2003 Datacenter 64-bit Edition	9.22		9.2 TS2M3
		Microsoft® Windows® for 64-Bit Itanium-based Systems	9.22		9.2 TS2M3
		z/OS	9.22		9.2 TS2M3

* For software releases that are not yet generally available, the Fixed Release is the software release in which the problem is planned to be fixed.

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A fix for this issue for Base SAS 9.4_M7 is available at:

https://tshf.sas.com/techsup/download/hotfix/HF2/I9R.html#66750

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A fix for this issue for SAS/STAT 15.2 is available at:

https://tshf.sas.com/techsup/download/hotfix/HF2/I5J.html#66750

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A fix for this issue for Base SAS 9.4_M6 is available at:

https://tshf.sas.com/techsup/download/hotfix/HF2/D9T.html#66750

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A fix for this issue for SAS/STAT 15.1 is available at:

https://tshf.sas.com/techsup/download/hotfix/HF2/E8U.html#66750

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If the LINES or LINESTABLE option is specified in the LSMEANS or SLICE statement, and there are more than 24 statistically different groups, PROC PLM might issue an error or reuse letters.

Type:	Problem Note
Priority:	high
Topic:	Analytics ==> Analysis of Means Analytics ==> Analysis of Variance Analytics ==> Longitudinal Analysis Analytics ==> Mixed Models Analytics ==> Regression Analytics ==> analytics SAS Reference ==> Procedures ==> GLIMMIX SAS Reference ==> Procedures ==> GLM SAS Reference ==> Procedures ==> PLM

Date Modified:	2021-06-17 13:07:38
Date Created:	2020-10-09 16:18:05