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<body><div>Se você exponenciar os parâmetros, vai encontrar a razão (de taxa, de proporção...) em relação ao nível de referência de cada cada variável.<br></div>
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<div id="sig4487139"><div id="signature" class="signature"><a href="http://lattes.cnpq.br/9234772336296638" title="Currículo Lattes">Leonardo Ferreira Fontenelle</a><br></div>
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<div>Em Qui 19 mar. 2015, às 15:15, ana paula coelho madeira escreveu:<br></div>
<blockquote type="cite"><div dir="ltr">Boa tarde!<br></div>
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<div dir="ltr">Tenho um experimento que visa analisar <span class="font" style="font-family:'Times New Roman', serif"><span class="size" style="font-size:12pt">como transgenia e controle químico (tratamentos)  afetam número
de parasitóides (Chelonus).</span></span><br></div>
<div dir="ltr"><span class="font" style="font-family:'Times New Roman', serif"><span class="size" style="font-size:12pt">Construí o modelo:</span></span><br></div>
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<div dir="ltr"><span class="font" style="font-family:'Times New Roman', serif"><span class="size" style="font-size:12pt"><span class="highlight" style="background-color: rgb(255, 255, 0)">m1<-glm.nb(n_parasit_Chelonus~trat)  </span></span></span><br></div>
<div dir="ltr"><span class="font" style="font-family:'Times New Roman', serif"><span class="size" style="font-size:12pt"><span class="highlight" style="background-color: rgb(255, 255, 0)">> summary(m1) </span></span></span><br></div>
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<div dir="ltr"><span class="font" style="font-family:'Times New Roman', serif"><span class="size" style="font-size:12pt">Coefficients:</span></span><br></div>
<div dir="ltr"><span class="font" style="font-family:'Times New Roman', serif"><span class="size" style="font-size:12pt">              Estimate Std. Error z value Pr(>|z|)    </span></span><br></div>
<div dir="ltr"><span class="font" style="font-family:'Times New Roman', serif"><span class="size" style="font-size:12pt">(Intercept)    2.54553    0.16046  15.864  < 2e-16 ***</span></span><br></div>
<div dir="ltr"><span class="font" style="font-family:'Times New Roman', serif"><span class="size" style="font-size:12pt">tratC         -0.24295    0.23851  -1.019   0.3084    </span></span><br></div>
<div dir="ltr"><span class="font" style="font-family:'Times New Roman', serif"><span class="size" style="font-size:12pt">tratD          0.17905    0.21973   0.815   0.4152    </span></span><br></div>
<div dir="ltr"><span class="font" style="font-family:'Times New Roman', serif"><span class="size" style="font-size:12pt">tratF        -21.84812 4713.30843  -0.005   0.9963    </span></span><br></div>
<div dir="ltr"><span class="font" style="font-family:'Times New Roman', serif"><span class="size" style="font-size:12pt">tratG          0.46262    0.21032   2.200   0.0278 *  </span></span><br></div>
<div dir="ltr"><span class="font" style="font-family:'Times New Roman', serif"><span class="size" style="font-size:12pt">tratI         -1.22378    0.31394  -3.898 9.69e-05 ***</span></span><br></div>
<div dir="ltr"><span class="font" style="font-family:'Times New Roman', serif"><span class="size" style="font-size:12pt">tratJ          0.12862    0.22165   0.580   0.5617    </span></span><br></div>
<div dir="ltr"><span class="font" style="font-family:'Times New Roman', serif"><span class="size" style="font-size:12pt">tratL        -21.84812 4713.30843  -0.005   0.9963    </span></span><br></div>
<div dir="ltr"><span class="font" style="font-family:'Times New Roman', serif"><span class="size" style="font-size:12pt">tratM         -0.40547    0.24759  -1.638   0.1015    </span></span><br></div>
<div dir="ltr"><span class="font" style="font-family:'Times New Roman', serif"><span class="size" style="font-size:12pt">tratN          0.28768    0.21586   1.333   0.1826    </span></span><br></div>
<div dir="ltr"><span class="font" style="font-family:'Times New Roman', serif"><span class="size" style="font-size:12pt">tratP         -3.23868    0.72931  -4.441 8.96e-06 ***</span></span><br></div>
<div dir="ltr"><span class="font" style="font-family:'Times New Roman', serif"><span class="size" style="font-size:12pt">tratQ         -0.04001    0.22868  -0.175   0.8611    </span></span><br></div>
<div dir="ltr"><span class="font" style="font-family:'Times New Roman', serif"><span class="size" style="font-size:12pt">tratS        -21.84812 4713.30843  -0.005   0.9963    </span></span><br></div>
<div dir="ltr"><span class="font" style="font-family:'Times New Roman', serif"><span class="size" style="font-size:12pt">---</span></span><br></div>
<div dir="ltr"><span class="font" style="font-family:'Times New Roman', serif"><span class="size" style="font-size:12pt">Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1</span></span><br></div>
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<div dir="ltr"><span class="font" style="font-family:'Times New Roman', serif"><span class="size" style="font-size:12pt">(Dispersion parameter for Negative Binomial(40.7143) family taken to be 1)</span></span><br></div>
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<div dir="ltr"><span class="font" style="font-family:'Times New Roman', serif"><span class="size" style="font-size:12pt">    Null deviance: 376.329  on 51  degrees of freedom</span></span><br></div>
<div dir="ltr"><span class="font" style="font-family:'Times New Roman', serif"><span class="size" style="font-size:12pt">Residual deviance:  39.605  on 39  degrees of freedom</span></span><br></div>
<div dir="ltr"><span class="font" style="font-family:'Times New Roman', serif"><span class="size" style="font-size:12pt">AIC: 234.09</span></span><br></div>
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<div dir="ltr"><span class="font" style="font-family:'Times New Roman', serif"><span class="size" style="font-size:12pt">Como posso interpretar esses resultados?</span></span><br></div>
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<div dir="ltr"><span class="font" style="font-family:'Times New Roman', serif"><span class="size" style="font-size:12pt">Agradeço pela ajuda.</span></span><br></div>
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<div dir="ltr"><span class="font" style="font-family:'Times New Roman', serif"><span class="size" style="font-size:12pt">Ana</span></span><br></div>
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