📄 m01 - basic concepts summary.mht
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remember</A>. <!-- InstanceEndEditable --></LI></UL>
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<H2><STRONG><A name=3DText>Text Summary</A></STRONG> </H2>
<P><EM>To go to the page where a task, programming feature, or=20
concept was presented, select a=20
link.</EM></P></TD></TR></TBODY></TABLE><BR><!-- InstanceBeginEditable =
name=3D"textsummary" -->
<P align=3Dcenter>
<CENTER>
<TABLE cellSpacing=3D0 cellPadding=3D0 width=3D"85%" border=3D0>
<TBODY>
<TR>
<TD><STRONG>Components of SAS Programs</STRONG><BR><A=20
onmouseover=3D"window.status=3D'Display details on SAS programs.'; =
"=20
onclick=3DsuggestBack() onmouseout=3D"window.status=3D''"=20
href=3D"http://www.sas.com/apps/OLTRN/59080/m1/m1_2.htm">SAS =
programs</A>=20
consist of two types of steps: DATA steps and PROC (procedure) =
steps.=20
These two steps, alone or combined, form most SAS programs. A SAS =
program=20
can consist of a DATA step, a PROC step, or any combination of =
DATA and=20
PROC steps. <A=20
onmouseover=3D"window.status=3D'Display details on SAS programs.'; =
"=20
onclick=3DsuggestBack() onmouseout=3D"window.status=3D''"=20
href=3D"http://www.sas.com/apps/OLTRN/59080/m1/m1_2.htm#DATA">DATA =
steps</A>=20
typically create or modify SAS data sets, but they can also be =
used to=20
produce custom-designed reports. <A=20
onmouseover=3D"window.status=3D'Display details on SAS programs.'; =
"=20
onclick=3DsuggestBack() onmouseout=3D"window.status=3D''"=20
href=3D"http://www.sas.com/apps/OLTRN/59080/m1/m1_2.htm#PROC">PROC =
steps</A>=20
are pre-written routines that enable you to analyze and process =
the data=20
in a SAS data set and to present the data in the form of a report. =
They=20
sometimes create new SAS data sets that contain the results of the =
procedure.</TD></TR></TBODY></TABLE><BR></CENTER>
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<TABLE cellSpacing=3D0 cellPadding=3D0 width=3D"85%" border=3D0>
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<TD align=3Dleft><STRONG>Characteristics of SAS =
Programs</STRONG><BR>SAS=20
programs consist of <A=20
onmouseover=3D"window.status=3D'Display details on SAS =
statements.'; "=20
onclick=3DsuggestBack() onmouseout=3D"window.status=3D''"=20
href=3D"http://www.sas.com/apps/OLTRN/59080/m1/m1_3.htm">SAS =
statements</A>.=20
A SAS statement usually begins with a SAS keyword and always ends =
with a=20
semicolon. A DATA step begins with the keyword DATA. A PROC step =
begins=20
with the keyword PROC. SAS statements are free-format, so they can =
begin=20
and end anywhere on a line. One statement can continue over =
several lines,=20
and several statements can be on a line. Blanks or special =
characters=20
separate "words" in a SAS =
statement.</TD></TR></TBODY></TABLE><BR></CENTER>
<P align=3Dcenter>
<CENTER>
<TABLE cellSpacing=3D0 cellPadding=3D0 width=3D"85%" border=3D0>
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<TD><STRONG>Processing SAS Programs</STRONG><BR>When you <A=20
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