📄 m39 - creating and managing variables - 35 of 36.mht
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InstanceEndEditable --></TD></TR>
<TR vAlign=3Dtop>
<TD><INPUT type=3Dradio value=3Db name=3Dques4> </TD>
<TD> <EM>b.</EM> </TD>
<TD><!-- InstanceBeginEditable name=3D"q4b" =
--><EM>0</EM><!-- InstanceEndEditable --></TD></TR>
<TR vAlign=3Dtop>
<TD><INPUT type=3Dradio value=3Dc name=3Dques4> </TD>
<TD> <EM>c.</EM> </TD>
<TD><!-- InstanceBeginEditable name=3D"q4c" =
--><EM>30</EM><!-- InstanceEndEditable --></TD></TR>
<TR vAlign=3Dtop>
<TD><INPUT type=3Dradio value=3Dd name=3Dques4> </TD>
<TD> <EM>d.</EM> </TD>
<TD><!-- InstanceBeginEditable name=3D"q4d" =
--><EM>70</EM><!-- InstanceEndEditable --></TD></TR></TBODY></TABLE>
<P></P>
<LI><!-- InstanceBeginEditable name=3D"q5text" -->Now consider =
the revised=20
program below. What is the value of <CODE>Count</CODE> after the =
<STRONG>third</STRONG> observation is read?=20
<P>
<TABLE cellSpacing=3D0 cellPadding=3D0 border=3D0>
<TBODY>
<TR vAlign=3Dtop>
<TD noWrap align=3Dmiddle>
<TABLE title=3D"Raw Data File" cellSpacing=3D0 =
cellPadding=3D0=20
rules=3Dnone bgColor=3D#cccccc border=3D1 frame=3Dbox>
<THEAD>
<TR>
<TD align=3Dmiddle bgColor=3D#f7f7de><FONT=20
face=3D"Courier New, Courier" color=3D#000000=20
=
size=3D2><NOBR>1---+----10</NOBR></FONT></TD></TR></THEAD>
<TBODY>
<TR>
<TD align=3Dleft bgColor=3D#ffffff><FONT=20
face=3D"Courier New, Courier" color=3D#000000=20
size=3D2> 10</FONT></TD></TR>
<TR>
<TD align=3Dleft bgColor=3D#ffffff><FONT=20
face=3D"Courier New, Courier" color=3D#000000=20
size=3D2> 20</FONT></TD></TR>
<TR>
<TD align=3Dleft bgColor=3D#ffffff><FONT=20
face=3D"Courier New, Courier" color=3D#000000=20
size=3D2> </FONT></TD></TR>
<TR>
<TD align=3Dleft bgColor=3D#ffffff><FONT=20
face=3D"Courier New, Courier" color=3D#000000=20
size=3D2> 40</FONT></TD></TR>
<TR>
<TD align=3Dleft bgColor=3D#ffffff><FONT=20
face=3D"Courier New, Courier" color=3D#000000=20
=
size=3D2> 50</FONT></TD></TR></TBODY></TABLE></TD>
<TD align=3Dleft><PRE><FONT color=3D#003399>
data work.newnums;
infile numbers;
input Tens 2-3;
retain Count 100;
count+tens;
run;</FONT></PRE></TD></TR></TBODY></TABLE><!-- InstanceEndEditable =
-->
<P>
<TABLE border=3D0>
<TBODY>
<TR vAlign=3Dtop>
<TD><INPUT type=3Dradio value=3Da name=3Dques5> </TD>
<TD> <EM>a.</EM> </TD>
<TD><!-- InstanceBeginEditable name=3D"q5a" -->missing =
<!-- InstanceEndEditable --></TD></TR>
<TR vAlign=3Dtop>
<TD><INPUT type=3Dradio value=3Db name=3Dques5> </TD>
<TD> <EM>b.</EM> </TD>
<TD><!-- InstanceBeginEditable name=3D"q5b" --><EM>0</EM> =
<!-- InstanceEndEditable --></TD></TR>
<TR vAlign=3Dtop>
<TD><INPUT type=3Dradio value=3Dc name=3Dques5> </TD>
<TD> <EM>c.</EM> </TD>
<TD><!-- InstanceBeginEditable name=3D"q5c" =
--><EM>100</EM> <!-- InstanceEndEditable --></TD></TR>
<TR vAlign=3Dtop>
<TD><INPUT type=3Dradio value=3Dd name=3Dques5> </TD>
<TD> <EM>d.</EM> </TD>
<TD><!-- InstanceBeginEditable name=3D"q5d" =
--><EM>130</EM><!-- InstanceEndEditable --></TD></TR></TBODY></TABLE>
<P></P>
<LI><!-- InstanceBeginEditable name=3D"q6text" -->For the =
observation=20
shown below, what is the result of the IF-THEN statements?=20
<P>
<TABLE title=3D"SAS Data Set" cellSpacing=3D0 cellPadding=3D3 =
bgColor=3D#ffffff=20
border=3D1>
<THEAD>
<TR>
<TD align=3Dmiddle bgColor=3D#f7f7de><FONT=20
face=3D"Arial, Helvetica, Helv" color=3D#000000=20
size=3D2><B>Status</B></FONT></TD>
<TD align=3Dmiddle bgColor=3D#f7f7de><FONT=20
face=3D"Arial, Helvetica, Helv" color=3D#000000=20
size=3D2><B>Type</B></FONT></TD>
<TD align=3Dmiddle bgColor=3D#f7f7de><FONT=20
face=3D"Arial, Helvetica, Helv" color=3D#000000=20
size=3D2><B>Count</B></FONT></TD>
<TD align=3Dmiddle bgColor=3D#f7f7de><FONT=20
face=3D"Arial, Helvetica, Helv" color=3D#000000=20
size=3D2><B>Action</B></FONT></TD>
<TD align=3Dmiddle bgColor=3D#f7f7de><FONT=20
face=3D"Arial, Helvetica, Helv" color=3D#000000=20
size=3D2><B>Control</B></FONT></TD></TR></THEAD>
<TBODY>
<TR>
<TD align=3Dright>
<DIV align=3Dleft><FONT face=3D"Arial, Helvetica, Helv" =
color=3D#000000=20
size=3D2>ok</FONT></DIV></TD>
<TD align=3Dleft><FONT face=3D"Arial, Helvetica, Helv" =
color=3D#000000=20
size=3D2>3</FONT></TD>
<TD align=3Dright><FONT face=3D"Arial, Helvetica, Helv" =
color=3D#000000=20
size=3D2>12</FONT></TD>
<TD align=3Dright>
<DIV align=3Dleft><FONT face=3D"Arial, Helvetica, Helv" =
color=3D#000000=20
size=3D2>E</FONT></DIV></TD>
<TD align=3Dright>
<DIV align=3Dleft><FONT face=3D"Arial, Helvetica, Helv" =
color=3D#000000=20
=
size=3D2>Go</FONT></DIV></TD></TR></TBODY></TABLE><PRE><FONT =
color=3D#003399>if status=3D'OK' and type=3D3
then Count+1;
if status=3D'S' or action=3D'E'
then Control=3D'Stop';</FONT><BR></PRE><!-- InstanceEndEditable -->
<P>
<TABLE border=3D0>
<TBODY>
<TR vAlign=3Dtop>
<TD><INPUT type=3Dradio value=3Da name=3Dques6> </TD>
<TD> <EM>a.</EM> </TD>
<TD><!-- InstanceBeginEditable name=3D"q6a" =
--><CODE>Count</CODE> =3D <EM>12</EM> <C=
ODE>Control</CODE> =3D <EM>Go</EM>=20
<!-- InstanceEndEditable --></TD></TR>
<TR vAlign=3Dtop>
<TD><INPUT type=3Dradio value=3Db name=3Dques6> </TD>
<TD> <EM>b.</EM> </TD>
<TD><!-- InstanceBeginEditable name=3D"q6b" =
--><CODE>Count</CODE> =3D <EM>13</EM> <C=
ODE>Control</CODE> =3D <EM>Stop</EM>=20
<!-- InstanceEndEditable --></TD></TR>
<TR vAlign=3Dtop>
<TD><INPUT type=3Dradio value=3Dc name=3Dques6> </TD>
<TD> <EM>c.</EM> </TD>
<TD><!-- InstanceBeginEditable name=3D"q6c" =
--><CODE>Count</CODE> =3D <EM>12</EM> <C=
ODE>Control</CODE> =3D <EM>Stop</EM>=20
<!-- InstanceEndEditable --></TD></TR>
<TR vAlign=3Dtop>
<TD><INPUT type=3Dradio value=3Dd name=3Dques6> </TD>
<TD> <EM>d.</EM> </TD>
<TD><!-- InstanceBeginEditable name=3D"q6d" =
--><CODE>Count</CODE> =3D <EM>13</EM> <C=
ODE>Control</CODE> =3D <EM>Go</EM><!-- InstanceEndEditable =
--></TD></TR></TBODY></TABLE>
<P></P>
<LI><!-- InstanceBeginEditable name=3D"q7text" -->Which of the =
following=20
can determine the length of a new variable?<!-- =
InstanceEndEditable -->=20
<P>
<TABLE border=3D0>
<TBODY>
<TR vAlign=3Dtop>
<TD><INPUT type=3Dradio value=3Da name=3Dques7> </TD>
<TD> <EM>a.</EM> </TD>
<TD><!-- InstanceBeginEditable name=3D"q7a" -->the length of =
the=20
variable's first value <!-- InstanceEndEditable =
--></TD></TR>
<TR vAlign=3Dtop>
<TD><INPUT type=3Dradio value=3Db name=3Dques7> </TD>
<TD> <EM>b.</EM> </TD>
<TD><!-- InstanceBeginEditable name=3D"q7b" -->the =
assignment=20
statement<!-- InstanceEndEditable --></TD></TR>
<TR vAlign=3Dtop>
<TD><INPUT type=3Dradio value=3Dc name=3Dques7> </TD>
<TD> <EM>c.</EM> </TD>
<TD><!-- InstanceBeginEditable name=3D"q7c" -->the LENGTH =
statement<!-- InstanceEndEditable --></TD></TR>
<TR vAlign=3Dtop>
<TD><INPUT type=3Dradio value=3Dd name=3Dques7> </TD>
<TD> <EM>d.</EM> </TD>
<TD><!-- InstanceBeginEditable name=3D"q7d" -->all of the =
above<!-- InstanceEndEditable --></TD></TR></TBODY></TABLE>
<P></P>
<LI><!-- InstanceBeginEditable name=3D"q8text" -->Which set of =
statements=20
is equivalent to the code shown below? <PRE><FONT =
color=3D#003399>if code=3D'1' then Type=3D'Fixed';
if code=3D'2' then Type=3D'Variable';
if code^=3D'1' and code^=3D'2' then Type=3D'Unknown';</FONT></PRE><!-- =
InstanceEndEditable -->
<P>
<TABLE border=3D0>
<TBODY>
<TR vAlign=3Dtop>
<TD><INPUT type=3Dradio value=3Da name=3Dques8> </TD>
<TD> <EM>a.</EM> </TD>
<TD><!-- InstanceBeginEditable name=3D"q8a" --><PRE><FONT =
color=3D#003399>if code=3D'1' then Type=3D'Fixed';
else if code=3D'2' then Type=3D'Variable';
else Type=3D'Unknown';</FONT>
</PRE><!-- InstanceEndEditable --></TD></TR>
<TR vAlign=3Dtop>
<TD><INPUT type=3Dradio value=3Db name=3Dques8> </TD>
<TD> <EM>b.</EM> </TD>
<TD><!-- InstanceBeginEditable name=3D"q8b" --><PRE><FONT =
color=3D#003399>if code=3D'1' then Type=3D'Fixed';
if code=3D'2' then Type=3D'Variable';
else Type=3D'Unknown';</FONT>
</PRE><!-- InstanceEndEditable --></TD></TR>
<TR vAlign=3Dtop>
<TD><INPUT type=3Dradio value=3Dc name=3Dques8> </TD>
<TD> <EM>c.</EM> </TD>
<TD><!-- InstanceBeginEditable name=3D"q8c" --><PRE><FONT =
color=3D#003399>if code=3D'1' then type=3D'Fixed';
else code=3D'2' and type=3D'Variable';
else type=3D'Unknown';</FONT>
</PRE><!-- InstanceEndEditable --></TD></TR>
<TR vAlign=3Dtop>
<TD><INPUT type=3Dradio value=3Dd name=3Dques8> </TD>
<TD> <EM>d.</EM> </TD>
<TD><!-- InstanceBeginEditable name=3D"q8d" --><PRE><FONT =
color=3D#003399>if code=3D'1' and type=3D'Fixed';
then code=3D'2' and type=3D'Variable';
else type=3D'Unknown';</FONT></PRE><!-- InstanceEndEditable =
--></TD></TR></TBODY></TABLE>
<P></P>
<LI><!-- InstanceBeginEditable name=3D"q9text" -->What is the =
length of=20
the variable <CODE>Type</CODE>, as created in the DATA step =
below? <PRE><FONT color=3D#003399>data finance.newloan;
set finance.records;
TotLoan+payment;
if code=3D'1' then Type=3D'Fixed';
else Type=3D'Variable';
length type $ 10;
run;</FONT></PRE><!-- InstanceEndEditable -->
<P>
<TABLE border=3D0>
<TBODY>
<TR vAlign=3Dtop>
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