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<span style="font-size-adjust: none; font-stretch: 100%; margin-bottom: 0px; margin-top: 0px">Prezados colegas,</span></div>
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<span style="font-size-adjust: none; font-stretch: 100%; margin-bottom: 0px; margin-top: 0px">Boa noite! Estou analisando um experimento em DBC com 2 fatores arranjados no esquema de faixas. Estou em dúvida em relação a verificação dos pressupostos do modelo. </span></div>
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<span style="font-size-adjust: none; font-stretch: 100%; margin-bottom: 0px; margin-top: 0px">Em uma material do professor Euclides encontrei que para um fatorial (2 fatores) ele define o fator "tratamento" como a combinação dos níveis dos fatores em estudo
e faz o teste das pressuposições considerando apenas o delineamento experimental. </span></div>
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<span style="font-size-adjust: none; font-stretch: 100%; margin-bottom: 0px; margin-top: 0px"><span style="font-size-adjust: none; font-stretch: 100%; margin-bottom: 0px; margin-top: 0px">> # Teste de Bartlett<br>
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> bartlett.test(Y~FTR) ## Em que FTR é o fator Tratamento</div>
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> # Teste de Levene</div>
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> #require(lawstat)</div>
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<span style="font-size-adjust: none; font-stretch: 100%; margin-bottom: 0px; margin-top: 0px">> levene.test(Y, FTR)</span></div>
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Considerando que tenho também dois fatores, porem arranjados em faixas, posso usar a mesma ideia ou os erros adicionais que compõem o modelo de faixas inviabilizam essa ideia?</div>
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Desde já agradeço</div>
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Att</div>
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