Greetings SASsers, I am setting up a bootstrap analysis of a multinomial model in Proc Logistic and getting this warning: WARNING: The current by-group is not processed because the ordering of the levels of Smoker_NXT are different from their ordering across all by-groups. which is unexpected because my data is sorted. My log file, lightly edited for brevity: NOTE: Copyright (c) 2016 by SAS Institute Inc., Cary, NC, USA. NOTE: SAS (r) Proprietary Software 9.4 (TS1M7) Licensed to UNIVERSITY OF NEW MEXICO - ADMIN, Site 70080754. NOTE: This session is executing on the X64_10PRO platform. 2791 proc sort data=boots2; by Replicate Smoker_NXT ;
2793 run;
NOTE: There were 243174 observations read from the data set WORK.BOOTS2.
2808 proc logistic data=boots2 order=formatted plots=none ;
2809 by Replicate;
2813 class Wave(ref='1') AgeStartCIGS(ref='18-24')
2813 ! Age1stIview(ref='18-24') Sex(ref='Male')
2814 Race(ref='White alone') Hispanic(ref='Non-Hispanic')
2815 Smoker(ref='No') Smoker_NXT(ref='No') ENDSer(ref='No')
2816 Start2SMK(ref='No') SmkHistory(ref=first) / param=glm;
2817
2818 model Smoker_NXT = AgeStartCIGS Age1stIview Sex Race Hispanic Wave|Smoker|ENDSer SmkHistory Start2SMK / noint
2819 ! link=glogit Singular=1E-7 ;
2820 weight tWGT ;
2829 run;
WARNING: The current by-group is not processed because the ordering of the
levels of Smoker_NXT are different from their ordering across all
by-groups.
NOTE: The above message was for the following BY group:
Sample Replicate Number=1
NOTE: There were 243174 observations read from the data set WORK.BOOTS2.
NOTE: PROCEDURE LOGISTIC used (Total process time): I get this warning for all By-Replicate groups, even for only a single group, but not if I remove the "BY Replicate;" statement. My code: proc sort data=boots2;
by Replicate Smoker_NXT ;
run;
proc logistic data=boots2 order=data plots=none ;
by Replicate;
class Wave(ref='1') AgeStartCIGS(ref='18-24') Age1stIview(ref='18-24') Sex(ref='Male') Race(ref='White alone') Hispanic(ref='Non-Hispanic') Smoker(ref='No') Smoker_NXT(ref='No') ENDSer(ref='No') Start2SMK(ref='No') SmkHistory(ref=first) / param=glm;
model Smoker_NXT = AgeStartCIGS Age1stIview Sex Race Hispanic Wave|Smoker|ENDSer SmkHistory Start2SMK / noint link=glogit Singular=1E-7 ;
weight tWGT ;
run; Note1: "order=data" was suggested in one of the warning message, but it doesn't resolve the warning. Note2: The warning goes away if I switch from Param=GLM to Param=REF, but I am hoping to use LSMEANS to get the interaction results. TIA!
... View more
