<html> <head> <meta name=ProgId content=PowerPoint.Slide> <meta name=Generator content="Microsoft Macintosh PowerPoint 10"> <link id=Main-File rel=Main-File href="WebQTLDemo.htm"> <link title="Presentation File" type="application/powerpoint" rel=alternate href=WebQTLDemo.ppt> <script> if ( ! top.PPTPRESENTATION ) { window.location.replace( "endshow.htm" ); } </script> </head> <body bgcolor=black text=white> <table border=0 width="100%"> <tr> <td width=5 nowrap></td> <td width="100%"></td> </tr> <tr> <td colspan=1></td> <td align=left colspan=1><font face=Helvetica size=2>The correlation between App and heat shock protein 84-1 transcript is most impressive.<span style="mso-spacerun: yes"> </span>Since WebQTL now contains total of about 70,000 traits in the BXD strains, we could produce as many as to 70k x 35k scatter plots of this type. Since all of the<span style="mso-spacerun: yes"> </span>correlations come for a common reference population, none<span style="mso-spacerun: yes"> </span>of the correlations are blantantly silly. However the great majority may be uninterpretable and a very large number may be meaningless given the signal-to-noise ratios of some measurements. With about 30 strains, correlations above 0.7 have a reasonably low false positive rate.</font><br> </td> </tr> </table> </body> </html>