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    <title>topic rolling reg and quadratic programming in SAS in Mathematical Optimization, Discrete-Event Simulation, and OR</title>
    <link>https://communities.sas.com/t5/Mathematical-Optimization/rolling-reg-and-quadratic-programming-in-SAS/m-p/311562#M1510</link>
    <description>&lt;P&gt;I am trying to do a &lt;SPAN class="lia-search-match-lithium"&gt;style&lt;/SPAN&gt; &lt;SPAN class="lia-search-match-lithium"&gt;analysis&lt;/SPAN&gt; as in &lt;SPAN class="lia-search-match-lithium"&gt;Sharpe&lt;/SPAN&gt; (1992) paper (Asset allocation: Management &lt;SPAN class="lia-search-match-lithium"&gt;Style&lt;/SPAN&gt; and Performance Measurement).&lt;/P&gt;&lt;P&gt;There are three different models, unconstrained, constrained and quadratic programmed (Page 7). I am stuck with the quadratic programming model, where the coefficient is to be non-negative. Since we can only specify an equation in the restrict statement, I am wondering if anyone know how to run the regression in SAS?Plus I want to perform a rolling regression.&lt;/P&gt;</description>
    <pubDate>Mon, 14 Nov 2016 23:31:01 GMT</pubDate>
    <dc:creator>Amalik</dc:creator>
    <dc:date>2016-11-14T23:31:01Z</dc:date>
    <item>
      <title>rolling reg and quadratic programming in SAS</title>
      <link>https://communities.sas.com/t5/Mathematical-Optimization/rolling-reg-and-quadratic-programming-in-SAS/m-p/311562#M1510</link>
      <description>&lt;P&gt;I am trying to do a &lt;SPAN class="lia-search-match-lithium"&gt;style&lt;/SPAN&gt; &lt;SPAN class="lia-search-match-lithium"&gt;analysis&lt;/SPAN&gt; as in &lt;SPAN class="lia-search-match-lithium"&gt;Sharpe&lt;/SPAN&gt; (1992) paper (Asset allocation: Management &lt;SPAN class="lia-search-match-lithium"&gt;Style&lt;/SPAN&gt; and Performance Measurement).&lt;/P&gt;&lt;P&gt;There are three different models, unconstrained, constrained and quadratic programmed (Page 7). I am stuck with the quadratic programming model, where the coefficient is to be non-negative. Since we can only specify an equation in the restrict statement, I am wondering if anyone know how to run the regression in SAS?Plus I want to perform a rolling regression.&lt;/P&gt;</description>
      <pubDate>Mon, 14 Nov 2016 23:31:01 GMT</pubDate>
      <guid>https://communities.sas.com/t5/Mathematical-Optimization/rolling-reg-and-quadratic-programming-in-SAS/m-p/311562#M1510</guid>
      <dc:creator>Amalik</dc:creator>
      <dc:date>2016-11-14T23:31:01Z</dc:date>
    </item>
    <item>
      <title>Re: rolling reg and quadratic programming in SAS</title>
      <link>https://communities.sas.com/t5/Mathematical-Optimization/rolling-reg-and-quadratic-programming-in-SAS/m-p/311665#M1511</link>
      <description>&lt;P&gt;Look at the documenttion for PROC OPTMODEL,which has a set of "solvers".&amp;nbsp; the one for quadratic programming is called QP.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;regards,&lt;/P&gt;
&lt;P&gt;Mark&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;</description>
      <pubDate>Tue, 15 Nov 2016 13:07:15 GMT</pubDate>
      <guid>https://communities.sas.com/t5/Mathematical-Optimization/rolling-reg-and-quadratic-programming-in-SAS/m-p/311665#M1511</guid>
      <dc:creator>mkeintz</dc:creator>
      <dc:date>2016-11-15T13:07:15Z</dc:date>
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