https://communities.sas.com/t5/SAS-Procedures/help-with-least-median-square-regression-problem/m-p/57405#M16004 I am having problem with LMS regression problem.<BR /> <BR /> I have setup a work file from a microsoft excel file - homework.xls. The file is two columns (y value is called dSC, x value column is drG1)<BR /> <BR /> I setup the following program in the editor:<BR /> <BR /> data work.homework;<BR /> <BR /> array ab{2} _ALL_;<BR /> a=ab[,2]; b=ab[,1];<BR /> <BR /> print "*** Homework LMS regression ***";<BR /> optn = j(9,1,.);<BR /> optn[2]=3;<BR /> optn[3]=3;<BR /> optn[8]=3;<BR /> call lms(sc,coef,wgt,optn,b,a);<BR /> <BR /> run;<BR /> <BR /> <BR /> I am getting an error with the array setup portion of the program. Also, I am getting an error where SAS is saying that the LMS subroutine is not setup properly. Any help is greatly appreciated.<BR /> <BR /> Basically, I want to simply run least median regression on a two column dataset from the excel file homework.xls. Nothing fancy. Thanks alot in advance. Tue, 28 Oct 2008 18:48:45 GMT snelliri 2008-10-28T18:48:45Z https://communities.sas.com/t5/SAS-Procedures/help-with-least-median-square-regression-problem/m-p/57405#M16004 I am having problem with LMS regression problem.<BR /> <BR /> I have setup a work file from a microsoft excel file - homework.xls. The file is two columns (y value is called dSC, x value column is drG1)<BR /> <BR /> I setup the following program in the editor:<BR /> <BR /> data work.homework;<BR /> <BR /> array ab{2} _ALL_;<BR /> a=ab[,2]; b=ab[,1];<BR /> <BR /> print "*** Homework LMS regression ***";<BR /> optn = j(9,1,.);<BR /> optn[2]=3;<BR /> optn[3]=3;<BR /> optn[8]=3;<BR /> call lms(sc,coef,wgt,optn,b,a);<BR /> <BR /> run;<BR /> <BR /> <BR /> I am getting an error with the array setup portion of the program. Also, I am getting an error where SAS is saying that the LMS subroutine is not setup properly. Any help is greatly appreciated.<BR /> <BR /> Basically, I want to simply run least median regression on a two column dataset from the excel file homework.xls. Nothing fancy. Thanks alot in advance. Tue, 28 Oct 2008 18:48:45 GMT https://communities.sas.com/t5/SAS-Procedures/help-with-least-median-square-regression-problem/m-p/57405#M16004 snelliri 2008-10-28T18:48:45Z https://communities.sas.com/t5/SAS-Procedures/help-with-least-median-square-regression-problem/m-p/57406#M16005 These IML examples should help.<BR /> <BR /> <A href="http://support.sas.com/documentation/cdl/en/imlug/59656/HTML/default/robustregexpls.htm" target="_blank">http://support.sas.com/documentation/cdl/en/imlug/59656/HTML/default/robustregexpls.htm</A> Wed, 29 Oct 2008 13:01:49 GMT https://communities.sas.com/t5/SAS-Procedures/help-with-least-median-square-regression-problem/m-p/57406#M16005 Doc_Duke 2008-10-29T13:01:49Z