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大圣
决策树
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Error in fit(class ~ sepal_length + sepal_width + petal_length + petal_width, : could not find function "fit" Error in mmetric(data$class, dtreep, "ACC") : could not find function "mmetric" 您好，想学习数据挖掘，运行您的项目，在决策树分析报这样的错误，请问这是怎么回事，不太懂，希望给予指导。
hello! it is a good work . i am a student from china . i want to watch you examples but i found it have something wrong with it ,for...