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<font color="#000000"><font face="times new roman, new york, times, serif"><font size="3">Você
pode usar aov. A diferença esta na função para obter a análise de
variância. Você usaou anova(). Veja a função Anova() do pacote
car.</font></font></font></div>
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<font color="#000000"><font face="times new roman, new york, times, serif"><font size="3">?Anova</font></font></font></div>
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<font color="#000000"><font face="times new roman, new york, times, serif"><font size="3">Você
também pode alterar o tipo de contraste na aov() ou na lm().</font></font></font></div>
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<font color="#000000"><font face="times new roman, new york, times, serif"><font size="3">Observe
na CMR abaixo as diferenças.</font></font></font></div>
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<div class="western" style="margin-bottom: 0cm; "><a name="__DdeLink__3_944850360" href=""></a><a name="__DdeLink__7_944850360" href=""></a><a name="__DdeLink__73_944850360" href=""></a><a name="__DdeLink__85_944850360" href=""></a>
<font color="#000000"><font face="times new roman, new york, times, serif"><font size="3"><span style="background: #ffff00">fator1<-as.factor(c(rep("A",12),rep("B",12)))
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<font color="#000000"><font face="times new roman, new york, times, serif"><font size="3"><span style="background: #ffff00">fator2<-as.factor(c(rep("C",4),rep("D",4),rep("E",4),<font size="2">rep("C",4),rep("D",4),rep("E",4)))</font></span></font></font></font></div>
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<font color="#000000"><font face="times new roman, new york, times, serif"><font size="3"><span style="background: #ffff00">resposta<-c(39.03794,
30.19444, 32.57167, 34.87484, NA ,37.15130, 39.67066, 32.34696,
19.96688, 63.33362, 43.74447,47.39147, 37.37704, NA, 29.35858,
28.76528, 16.092950, 21.080503, 16.906132, 12.345620, 26.475927,
23.639545, 23.890539, NA)</span></font></font></font></div>
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<font color="#000000"><font face="times new roman, new york, times, serif"><font size="3"><span style="background: #ffff00">dados<-data.frame(fator1,fator2,resposta)</span></font></font></font></div>
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<font color="#000000"><font face="times new roman, new york, times, serif"><font size="3"><span style="background: #ffff00">require(easyanova)</span></font></font></font></div>
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<div class="western" style="margin-bottom: 0cm; "><a name="__DdeLink__19_944850360" href=""></a>
<font color="#000000"><font face="times new roman, new york, times, serif"><font size="3"><span style="background: #ffff00">m1<-aov(resposta~fator1*fator2,
data=dados)</span></font></font></font></div>
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<font color="#000000"><font face="times new roman, new york, times, serif"><font size="3"><span style="background: #ffff00">m2<-aov(resposta~fator1*fator2,
data=dados, contrasts=list(fator1=contr.sum, fator2=contr.sum))</span></font></font></font></div>
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<font color="#000000"><font face="times new roman, new york, times, serif"><font size="3"><span style="background: #ffff00">resultado<-ea2(dados)</span></font></font></font></div>
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<font color="#000000"><font face="times new roman, new york, times, serif"><font size="3"><span style="background: #ffff00">anova(m1)</span></font></font></font></div>
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<font color="#000000"><font face="times new roman, new york, times, serif"><font size="3"><span style="background: #ffff00">anova(m2)</span></font></font></font></div>
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<font color="#000000"><font face="times new roman, new york, times, serif"><font size="3"><span style="background: #ffff00">Anova(m1,
type=3)</span></font></font></font></div>
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<font color="#000000"><font face="times new roman, new york, times, serif"><font size="3"><span style="background: #ffff00">Anova(m2,
type=3)</span></font></font></font></div>
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<font color="#000000"><font face="times new roman, new york, times, serif"><font size="3"><span style="background: #ffff00">resultado[1]</span></font></font></font></div>
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</div></span></div><div><br></div> <div style="font-family: 'Courier New', courier, monaco, monospace, sans-serif; font-size: 10pt; "> <div style="font-family: 'times new roman', 'new york', times, serif; font-size: 12pt; "> <div dir="ltr"> <font size="2" face="Arial"> <hr size="1"> <b><span style="font-weight:bold;">De:</span></b> tiago souza marçal <tiagosouzamarcal@hotmail.com><br> <b><span style="font-weight: bold;">Para:</span></b> r-br@listas.c3sl.ufpr.br <br> <b><span style="font-weight: bold;">Enviadas:</span></b> Segunda-feira, 26 de Novembro de 2012 11:38<br> <b><span style="font-weight: bold;">Assunto:</span></b> Re: [R-br] Fatorial com parcelas perdidas<br> </font> </div> <br><div id="yiv931623525">
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Obrigado pela ajuda Emmanuel, realmente as somas de quadrados foram bem diferentes das que eu obtive no CMR que enviei.<div><br></div><div>Então a função <font face="Courier New">aov()</font> não deve ser utilizada quando temos dados desbalanceados?</div><div><br></div><div>Att.</div><div><br></div><div>Tiago.<br><br><div><div id="yiv931623525SkyDrivePlaceholder"></div><hr id="yiv931623525stopSpelling">Date: Mon, 26 Nov 2012 04:59:32 -0800<br>From: emmanuelarnhold@yahoo.com.br<br>To: r-br@listas.c3sl.ufpr.br<br>Subject: Re: [R-br] Fatorial com parcelas perdidas<br><br><div style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); font-family: 'Courier New', courier, monaco, monospace, sans-serif; font-size: 10pt; "><div><span><div style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; "><br></div><div style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; ">#
install.pakages("easyanova")</div><div style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; "><br></div><div style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; ">require(easyanova)</div><div style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; "><br></div><div style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; ">resultado=ea2(dados)</div><div style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; "><br></div><div style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; ">resultado</div><div style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; "><br></div><div style="color: rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; ">names(resultado)</div><div style="color:
rgb(69, 69, 69); font-family: Arial, Helvetica, sans-serif; font-size: 12px; "><br></div></span></div><div><br></div> <div style="font-family: 'Courier New', courier, monaco, monospace, sans-serif; font-size: 10pt; "> <div style="font-family: 'times new roman', 'new york', times, serif; font-size: 12pt; "> <div dir="ltr"> <font size="2" face="Arial"> <hr size="1"> <b><span style="font-weight:bold;">De:</span></b> tiago souza marçal <tiagosouzamarcal@hotmail.com><br> <b><span style="font-weight:bold;">Para:</span></b> r-br@listas.c3sl.ufpr.br <br> <b><span style="font-weight:bold;">Enviadas:</span></b> Domingo, 25 de Novembro de 2012 20:07<br> <b><span style="font-weight:bold;">Assunto:</span></b> [R-br] Fatorial com parcelas perdidas<br> </font> </div> <br><div id="yiv931623525ecxyiv1080577699">
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Prezados, <div><br></div><div>gostaria de saber se no caso de parcelas perdidas é só substituir o valor perdido par NA e usar a função <font face="Courier New">aov()</font> como no exemplo abaixo.</div><div><br></div><div>fator1<-c(rep("A",12),rep("B",12)) </div><div><br></div><div>fator2<-c(rep("C",4),rep("D",4),rep("E",4),<span style="font-size:10pt;">rep("C",4),rep("D",4),rep("E",4)</span><span style="font-size:10pt;">)</span></div><div><br></div><div>resposta<-c(39.03794, 30.19444, 32.57167, 34.87484, NA ,37.15130, 39.67066, 32.34696, 19.96688, 63.33362, 43.74447, </div><div><br></div><div>47.39147, 37.37704, NA, 29.35858, 28.76528, 16.092950, 21.080503, 16.906132, 12.345620, 26.475927, 23.639545, 23.890539,
NA)</div><div><br></div><div>dados<-data.frame(fator1,fator2,resposta)</div><div><br></div><div>anova<-aov(resposta~fator1*fator2)</div><div><br></div><div>summary(anova)</div><div><br></div><div><br></div><div>Existe algum pacote que realiza testes de comparação múltipla para dados desbalanciados. </div><div><br></div><div>Att.</div><div><br></div><div>Tiago.</div><div><br></div><div><br></div> </div></div>
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