<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>Dear Kumar,</div><div><br></div><div><blockquote type="cite"><div><font face="tahoma, sans-serif">Ensemble.Forecasting. </font><span style="font-family:tahoma,sans-serif">How the software computes ensemble probabilities is not clear in the manual.</span><span style="font-family:tahoma,sans-serif"> </span><span style="font-family:tahoma,sans-serif">But somewhere I came across the information that the weights are based on cross validated evaluation score. Since I do not have such score, the function should not work. </span></div></blockquote><div><br></div><div>No, it works. This is mostly because so few people have independent dataset that by default we wrote that the weights are based on the cross-validation results. Indeed, when you have independent dataset, the weight are calculate based on the scores on the independent evaluation. </div><div>This is something we need to modify in the manual, sorry for the confusion it gave you. </div><br><blockquote type="cite"><div><span style="font-family:tahoma,sans-serif">Instead, it gives me weight:</span></div>
<div><span style="font-family:tahoma,sans-serif"><div><br></div><div>$weights</div><div> ANN CTA GAM GBM GLM MARS FDA RF SRE</div><div>PA1 0 0 0.1729 0.2766 0.108 0 0 0.4425 0</div><div><br></div>
</span></div><div><span style="font-family:tahoma,sans-serif">Where are these weights coming from? These numbers do not match with any column in Evaluation.results (after rescaling to make the total =1). </span></div><div>
<a href="https://r-forge.r-project.org/scm/viewvc.php/pkg/R/Ensemble.Forecasting.R?view=markup&root=biomod&pathrev=168">https://r-forge.r-project.org/scm/viewvc.php/pkg/R/Ensemble.Forecasting.R?view=markup&root=biomod&pathrev=168</a> </div></blockquote><div><br></div><div>It depends on the weighting scheme you use (i.e. decay). Please look at the "decay" explanation in the help of Ensemble.Forecasting. </div><div>If you set decay= 'proportional', you should retrieve easily the weights with the evaluation scores (as they are proportional). </div><div><br></div><div>Hope it helps,</div><div><br></div><div>Wilfried</div><div><br></div><div><br></div><br><blockquote type="cite">
<div><div><div><br></div><div>Thanks in advance,</div><div>Kumar</div>-- <br><font color="#666666" face="tahoma, sans-serif">Section of Integrative Biology<br>University of Texas at Austin<br>Austin, Texas 78712, USA</font><br>
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<span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-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: 0px; font-size: medium; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; 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; font-size: medium; "><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: medium; 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: medium; 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: medium; 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><span class="Apple-style-span" style="font-size: 12px; "><div>--------------------------</div><div>Dr. Wilfried Thuiller</div><div>Laboratoire d'Ecologie Alpine, UMR CNRS 5553</div><div>Université Joseph Fourier</div><div>BP53, 38041 Grenoble cedex 9, France</div><div>tel: +33 (0)4 76 51 44 97</div><div>fax: +33 (0)4 76 51 42 79</div><div><br></div><div>Email: <a href="mailto:wilfried.thuiller@ujf-grenoble.fr">wilfried.thuiller@ujf-grenoble.fr</a><br>Personal website: <a href="http://www.will.chez-alice.fr/">http://www.will.chez-alice.fr</a><br>Team website: <a href="http://www-leca.ujf-grenoble.fr/equipes/emabio.htm">http://www-leca.ujf-grenoble.fr/equipes/emabio.htm</a><br><br>ERC Starting Grant TEEMBIO project: <a href="http://www.will.chez-alice.fr/Research.html">http://www.will.chez-alice.fr/Research.html</a><br>FP6 European EcoChange project: <a href="http://www.ecochange-project.eu/">http://www.ecochange-project.eu</a></div><div><br></div></span></div></div></span><br class="Apple-interchange-newline"></div></span><br class="Apple-interchange-newline"></div></span><br class="Apple-interchange-newline"></div></span><br class="Apple-interchange-newline"></span><br class="Apple-interchange-newline">
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