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<p class="MsoNormal"><span style="color:#1F497D">Hi Kana,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">something like:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:blue">#include</span><span style="font-size:10.0pt;font-family:"Courier New"">
<span style="color:#A31515">"vnl/algo/vnl_qr.h"</span></span><span style="color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:green">vnl_qr<TScalarType> qr( vnl_matrix_1 );</span><span style="color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">and then use it, e.g.:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:blue">vnl_matrix<</span><span style="font-size:10.0pt;font-family:"Courier New";color:green"> TScalarType</span><span style="font-size:10.0pt;font-family:"Courier New";color:blue">
> vnl_matrix_2</span><span style="font-size:10.0pt;font-family:"Courier New""> =
<span style="color:#010001">qr</span>.<span style="color:#010001">solve</span>( <span style="color:blue">
vnl_matrix_3</span> );</span><span style="color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">or<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:blue">vnl_matrix<</span><span style="font-size:10.0pt;font-family:"Courier New";color:green"> TScalarType</span><span style="font-size:10.0pt;font-family:"Courier New";color:blue">
> vnl_matrix_Q</span><span style="font-size:10.0pt;font-family:"Courier New""> =
<span style="color:#010001">qr</span>.<span style="color:#010001">Q</span>();<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:blue">vnl_matrix<</span><span style="font-size:10.0pt;font-family:"Courier New";color:green"> TScalarType</span><span style="font-size:10.0pt;font-family:"Courier New";color:blue">
> vnl_matrix_R</span><span style="font-size:10.0pt;font-family:"Courier New""> =
<span style="color:#010001">qr</span>.<span style="color:#010001">R</span>();</span><span style="color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">See:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><a href="http://public.kitware.com/vxl/doc/development/core/vnl/html/classvnl__qr.html">http://public.kitware.com/vxl/doc/development/core/vnl/html/classvnl__qr.html</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">HTH,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Marius<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:0cm;margin-left:36.0pt;margin-bottom:.0001pt">
<b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> insight-users-bounces@itk.org [mailto:insight-users-bounces@itk.org]
<b>On Behalf Of </b>Arunachalam Kana<br>
<b>Sent:</b> maandag 4 april 2011 10:37<br>
<b>To:</b> insight-users@itk.org<br>
<b>Subject:</b> [Insight-users] QR decomposition<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-left:36.0pt"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="DE-AT">Hi Users,<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-GB">I want to us the QR decomposition in itk. I found from the mailing list that it is available in cqrdc.c but i do not know<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-GB">How to use it.
<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-GB">Can someone give an example of how to use the QR decomposition in itk.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-GB">Thank you in advance.<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:0cm;margin-left:36.0pt;margin-bottom:.0001pt">
<span lang="DE-AT">Kana Arunachalam Kannappan<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:0cm;margin-left:36.0pt;margin-bottom:.0001pt">
<span lang="DE-AT">Research Associate<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:0cm;margin-left:36.0pt;margin-bottom:.0001pt">
<span lang="DE-AT">FH OÖ Forschungs & Entwicklungs GmbH<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:0cm;margin-left:36.0pt;margin-bottom:.0001pt">
<span lang="DE-AT">Stelzhamer Strasse 23,<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:0cm;margin-left:36.0pt;margin-bottom:.0001pt">
<span lang="DE-AT">4600 Wels,<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:0cm;margin-left:36.0pt;margin-bottom:.0001pt">
<span lang="DE-AT">Austria.<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:0cm;margin-left:36.0pt;margin-bottom:.0001pt">
<span lang="DE-AT">Phone: +43 (0)7242 72811 -4420<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:0cm;margin-left:36.0pt;margin-bottom:.0001pt">
<span lang="DE-AT"><a href="mailto:kana.arunachalam@fh-wels.at">kana.arunachalam@fh-wels.at</a><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:0cm;margin-left:36.0pt;margin-bottom:.0001pt">
<span lang="DE-AT"><a href="http://www.fh-ooe.at">www.fh-ooe.at</a>; <a href="http://www.3dct.at">
www.3dct.at</a><o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="DE-AT"><o:p> </o:p></span></p>
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