<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:18pt"><div style="font-family: 'times new roman', 'new york', times, serif; font-size: 18pt; "><span>Dear list,</span></div><div style="color: rgb(0, 0, 0); font-size: 24px; font-family: 'times new roman', 'new york', times, serif; background-color: transparent; font-style: normal; "><span><br></span></div><div style="background-color: transparent; "><font class="Apple-style-span" face="'times new roman', 'new york', times, serif" size="5">Is there any threshold to consider a predictor as an important variable? I understand the importance is the result of one minus the correlation between the original prediction and the prediction with the permuted variable. And higher the value higher the importance. But an reference value would be useful. Does anybody have any suggestion?</font></div><div style="color: rgb(0, 0, 0); font-size:
24px; font-family: 'times new roman', 'new york', times, serif; background-color: transparent; font-style: normal; "><font class="Apple-style-span" face="'times new roman', 'new york', times, serif" size="5"><br></font></div><div style="color: rgb(0, 0, 0); font-size: 24px; font-family: 'times new roman', 'new york', times, serif; background-color: transparent; font-style: normal; "><font class="Apple-style-span" face="'times new roman', 'new york', times, serif" size="5">Cheers,</font></div><div style="font-family: 'times new roman', 'new york', times, serif; font-size: 18pt; "></div><div style="font-family: 'times new roman', 'new york', times, serif; font-size: 18pt; "> </div><div style="font-family: 'times new roman', 'new york', times, serif; font-size: 18pt; ">Pablo Riul<br><br>Departamento de Engenharia e Meio Ambiente<br>Centro de Ciências Aplicadas e Educação<br>Universidade Federal da Paraíba - Campus IV<br>R: Mangueira s/n, Centro
CEP: 58.297-000<br>Rio Tinto - Paraíba - Brasil</div></div></body></html>