topic Re: Arrays in SAS Procedures https://communities.sas.com/t5/SAS-Procedures/Arrays/m-p/85892#M24554 <HTML><HEAD></HEAD><BODY><P>SAS sets DATA step variables to missing between iterations of the DATA step.</P><P>Your code indicates that you want them set to missing for each iteration of the DO loop, that you must do with assignment statements as you have done.</P><P></P><P>Here is more information on the details of DATA step execution:</P><P></P><P><A href="http://support.sas.com/documentation/cdl/en/lrcon/65287/HTML/default/viewer.htm#p18vk5t9cwort1n18g7zg2no6tr4.htm" title="http://support.sas.com/documentation/cdl/en/lrcon/65287/HTML/default/viewer.htm#p18vk5t9cwort1n18g7zg2no6tr4.htm">SAS(R) 9.3 Language Reference: Concepts, Second Edition</A></P><P>Processing a DATA Step: A Walk-through</P><P></P><P>Jan</P></BODY></HTML> Fri, 24 May 2013 18:49:15 GMT jwsquillace 2013-05-24T18:49:15Z Arrays https://communities.sas.com/t5/SAS-Procedures/Arrays/m-p/85891#M24553 <HTML><HEAD></HEAD><BODY><P>Hi</P><P>the variables in and out are created newly based on some condition..</P><P>why do we have to set these to missing&nbsp; <STRONG>in=.; out=.;</STRONG></P><P>Doesn't sas do that automatically?????</P><P>Thanks</P></BODY></HTML> Fri, 24 May 2013 18:44:28 GMT https://communities.sas.com/t5/SAS-Procedures/Arrays/m-p/85891#M24553 robertrao 2013-05-24T18:44:28Z Re: Arrays https://communities.sas.com/t5/SAS-Procedures/Arrays/m-p/85892#M24554 <HTML><HEAD></HEAD><BODY><P>SAS sets DATA step variables to missing between iterations of the DATA step.</P><P>Your code indicates that you want them set to missing for each iteration of the DO loop, that you must do with assignment statements as you have done.</P><P></P><P>Here is more information on the details of DATA step execution:</P><P></P><P><A href="http://support.sas.com/documentation/cdl/en/lrcon/65287/HTML/default/viewer.htm#p18vk5t9cwort1n18g7zg2no6tr4.htm" title="http://support.sas.com/documentation/cdl/en/lrcon/65287/HTML/default/viewer.htm#p18vk5t9cwort1n18g7zg2no6tr4.htm">SAS(R) 9.3 Language Reference: Concepts, Second Edition</A></P><P>Processing a DATA Step: A Walk-through</P><P></P><P>Jan</P></BODY></HTML> Fri, 24 May 2013 18:49:15 GMT https://communities.sas.com/t5/SAS-Procedures/Arrays/m-p/85892#M24554 jwsquillace 2013-05-24T18:49:15Z