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使用Mathematica进行参数化三元接收器操作特性曲面分析。

Parametric three-way receiver operating characteristic surface analysis using mathematica.

作者信息

Heckerling P S

机构信息

Department of Medicine, University of Illinois at Chicago, 60612, USA.

出版信息

Med Decis Making. 2001 Sep-Oct;21(5):409-17. doi: 10.1177/0272989X0102100507.

DOI:10.1177/0272989X0102100507
PMID:11575490
Abstract

Three-way receiver operating characteristic (ROC) surface analysis involves the calculation of a volume under an ROC surface (VUS), which is a measure of discriminatory accuracy of 2 diagnostic tests for 3 diseases. Nonparametric methods for calculating VUS and its standard error have been developed. The author presents the code for roc3D, a Mathematica computer program for performing parametric ROC surface analysis. roc3D calculates VUS assuming a multinormal distribution of test results in the 3 diseased populations, provides user-specified pointwise confidence limits for VUS, and displays a 3-dimensional plot of the ROC surface. Limitations of the roc3D program are discussed.

摘要

三分类接收器操作特性（ROC）曲面分析涉及计算ROC曲面下的体积（VUS），它是衡量两种诊断测试对三种疾病的鉴别准确性的指标。已经开发出了计算VUS及其标准误差的非参数方法。作者展示了roc3D的代码，这是一个用于执行参数化ROC曲面分析的Mathematica计算机程序。roc3D假设三种患病群体的测试结果呈多元正态分布来计算VUS，为VUS提供用户指定的逐点置信限，并显示ROC曲面的三维图。文中讨论了roc3D程序的局限性。

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