https://communities.sas.com/t5/SAS-Procedures/Making-string-in-Alphabetical-order/m-p/75712#M21974 Hi<BR /> <BR /> i am having a string and it shd be in alpha betical order<BR /> <BR /> data x;<BR /> string='zxy cba';<BR /> run;<BR /> <BR /> output the string shd be in 'abc xyz' Fri, 27 Feb 2009 11:22:36 GMT R_Win 2009-02-27T11:22:36Z https://communities.sas.com/t5/SAS-Procedures/Making-string-in-Alphabetical-order/m-p/75712#M21974 Hi<BR /> <BR /> i am having a string and it shd be in alpha betical order<BR /> <BR /> data x;<BR /> string='zxy cba';<BR /> run;<BR /> <BR /> output the string shd be in 'abc xyz' Fri, 27 Feb 2009 11:22:36 GMT https://communities.sas.com/t5/SAS-Procedures/Making-string-in-Alphabetical-order/m-p/75712#M21974 R_Win 2009-02-27T11:22:36Z https://communities.sas.com/t5/SAS-Procedures/Making-string-in-Alphabetical-order/m-p/75713#M21975 The call routine SORTC() would do what you seem to want, but as I see the string, just REVERSE() is needed this time.<BR /> The call routine expects to operate on a list variables. The fastest way to split up the string into one char variables would use peekc() and poke(). Less advanced the following uses a 100element array of 1-byte variables.[pre] length_s = length( string );<BR /> array demo(100) $1 ;<BR /> do i= 1 to length_s ;<BR /> demo(i) = substr( string, i ) ;<BR /> end ; <BR /> call sortC( of demo(*) ) ; <BR /> do i= 1 to length_s ;<BR /> j = i +100 - length_s ;<BR /> substr( string, i,1 ) = demo(j) ;<BR /> end ; <BR /> drop demo: ; [/pre]<BR /> <BR /> PeterC Fri, 27 Feb 2009 15:32:06 GMT https://communities.sas.com/t5/SAS-Procedures/Making-string-in-Alphabetical-order/m-p/75713#M21975 Peter_C 2009-02-27T15:32:06Z