用真双正态模型处理了退化资料。
The proper binormal ROC model had been applied to the degenerate data.
双正态模型假定正常组与异常组均服从正态分布。
Binormal models are assumed that normal or abnormal group is normal distribution respectively.
方法在双正态模型基础下应用ML估计方法计算ROC曲线下面积，正态近似法估计面积的可信区间及假设检验。
Methods On the basis of binormal model, maximum likelihood estimation was applied to areas calculation, and approximately normal method to confidence interval estimation and hypothesis test.
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