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所有的 RevoScaleR 函式會使用 SA 對比,根據預設值,而不是預設 R 處理對比。
如果要從兩個函式取得相同的結果有兩個選項︰

i) 之前,執行您的程式碼,來設定下列的全域選項︰ 選項 (對比 = c (比例 ="contr.SAS",ordered="contr.poly"))

ii) 在您呼叫 lm() 或 glm,新增選項 ' 對比 = 清單 (動物種類最多 = contr。SA)'。在這個陳述式中包含所有因素變數。

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