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body_diff: "[{\"diffs\":[[1,\"正态性分析：\\\n小于50行的小样本数据时，倾向于看S-W的检验结果；\\\n大于50行的大样本数据时，倾向于看K-S的检验结果；\\\n\\\n非参数检验：\\\n数据不符合正态分布\\\n\\\nLogistic回归分析:\\\nLogistic回归分析也用于研究影响关系，即X对于Y的影响情况。Y为定类数据，X可以是定量数据或定类数据。\\\n\\\nLogistic回归和线性回归最大的区别在于，Y的数据类型。线性回归分析的因变量Y属于定量数据，而Logistic回归分析的因变量Y属于分类数据。\"]],\"start1\":0,\"start2\":0,\"length1\":0,\"length2\":223}]"
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