<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><br><div><br><div>Begin forwarded message:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="3" color="#000000" style="font: 12.0px Helvetica; color: #000000"><b>From: </b></font><font face="Helvetica" size="3" style="font: 12.0px Helvetica">The R Project for Statistical Computing <<a href="mailto:groups-noreply@linkedin.com">groups-noreply@linkedin.com</a>></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="3" color="#000000" style="font: 12.0px Helvetica; color: #000000"><b>Date: </b></font><font face="Helvetica" size="3" style="font: 12.0px Helvetica">January 4, 2011 3:55:17 PM GMT+01:00</font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="3" color="#000000" style="font: 12.0px Helvetica; color: #000000"><b>To: </b></font><font face="Helvetica" size="3" style="font: 12.0px Helvetica">Yurii Aulchenko <<a href="mailto:i.aoultchenko@erasmusmc.nl">i.aoultchenko@erasmusmc.nl</a>></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="3" color="#000000" style="font: 12.0px Helvetica; color: #000000"><b>Subject: </b></font><font face="Helvetica" size="3" style="font: 12.0px Helvetica"><b>New comment on "Package ff: memory-efficient storage of large data on disk and fast access functions"</b></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height: 14px; "><br></div> </div><div> <table border="0" cellpadding="0" cellspacing="0" style="width:550px; border-top:4px solid #39C; font: 12px arial, sans-serif; margin: 0 auto;"> <tbody><tr> <td style="padding-top:5px"><h1 style="color: #000; font: bold 21px arial;">LinkedIn <span style="color:#666;font-weight:bold">Groups</span></h1></td> </tr> <tr> <td style="padding-bottom: 25px; font-size:13px"> <ul style="list-style-type:none;padding-left:0;margin-bottom:10px;"> <li><strong>Group:</strong> The R Project for Statistical Computing</li> <li><strong>Discussion:</strong> <a href="http://www.linkedin.com/e/-87s8mq-giix8eb0-6c/vaq/38077579/77616/28905469/view_disc/">Package ff: memory-efficient storage of large data on disk and fast access functions</a> </li> </ul><p> <span class="text">And another option is the RevoScaleR package from Revolution Computing, see there: </span> <a href="http://www.linkedin.com/e/-87s8mq-giix8eb0-6c/plh/http%3A%2F%2Fwww%2Erevolutionanalytics%2Ecom%2Fproducts%2Fenterprise-big-data%2Ephp/B9Lc/" target="_blank">http://www.revolutionanalytics.com/products/enterprise-big-data.php</a> <span class="text"><br> It is a commercial package, but it's free for academic use. As far as the advertisements go, it has working linear as well as logistic regression methods. <br> Regarding accessibility of the "big memory" objects by other packages - I think we should forget about it for the moment. Big memory objects are not native R objects and are not accessible by native R functions nor by other packages. As far as I know this is the case for all of the packages mentioned here so far.</span> <br> <span style="font-size:11px;color:#666666;display:block;padding-top:7px">Posted by Michal Figurski</span> </p> </td></tr> <tr><td style="background-color:#ebf2f9; text-align:center; padding:10px;"><p> <a href="http://www.linkedin.com/e/-87s8mq-giix8eb0-6c/lvi/77616/38077579/member/true/grp_email_like_post/" style="margin-right:20px;"><strong>Like this discussion »</strong></a> <a href="http://www.linkedin.com/e/-87s8mq-giix8eb0-6c/vaq/38077579/77616/28905469/view_disc/" style="margin-right:20px;"><strong>Comment »</strong></a> <a href="http://www.linkedin.com/e/-87s8mq-giix8eb0-6c/ufv/77616/38077579/member/true/grp_email_unfollow_post/" style="margin-right:20px;"><strong>Stop Following Discussion »</strong></a> </p> </td></tr> <tr><td> <table width="1" border="0" cellspacing="0" cellpadding="0"><tbody><tr><td><div style="height:15px;font-size:15px;line-height:15px;"> </div></td></tr></tbody></table> </td></tr> <tr><td style="padding-top: 10px; border-top:1px solid #ccc;color:#666666;font-size:11px"><div> <br class="webkit-block-placeholder"></div><p>LinkedIn values your privacy. At no time has LinkedIn made your email address available to any other LinkedIn user without your permission. ©2010, LinkedIn Corporation.</p> </td></tr> </tbody></table> </div> </blockquote></div><br><div> <span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>-----------------------------------------------------------</div><div>Yurii Aulchenko</div><div>Erasmus MC Rotterdam</div><div>Department of Epidemiology, Ee 2200</div><div>Postbus 2040, 3000 CA Rotterdam</div><div>The Netherlands</div><div><br></div><div>phone: +31107043486</div><div>fax: +31107044657</div><div><br></div></div></span><br class="Apple-interchange-newline"></div></span><br class="Apple-interchange-newline"></div></span><br class="Apple-interchange-newline"> </div><br></body></html>