在編譯時期,使用統計資料 C API 的應用程式需要存取中提供的 C API DLL 外部符號ctgstats.lib檔案中。 Unix 和 Linux 平台 如果您變更範例 make 檔,則可能還必須更新samples/c/env_c.def檔案中。 範例程式碼 範例檔ctgstat1.c已提供。 這提供使用統計資料 C API 的簡單範例。 如需進一步詳細資料,請參閱C...
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C-statistics即为C统计量是ROC曲线下面积。如果这个logistic回归用于预测或诊断,roc曲线下面积可以估计用logistic回归模型进行诊断或预测的能力。Logistic回归模型根据预测概率绘制ROC曲线,其曲线下面积AUC = C-Statistics 。C-index,即一致性指数(index of concordance),通过评估模型预测结果与实际观察结果的符合程度,以评...
Call the typedef classCStatisticsto implement its parameter classCStatisticInfo. Remarks SeeSchema Rowset Classes and Typedef Classesfor more information on using typedef classes. This class identifies the statistics, defined in the catalog, that are owned by a given user. ...
The latest version of this topic can be found at CStatistics, CStatisticInfo. Call the typedef class CStatistics to implement its parameter class CStatisticInfo. Remarks See Schema Rowset Classes and Typedef Classes for more information on using typedef classes. This class identifies the statistics...
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The C-statistic isn’t used very often as it only gives you a general idea about a model; A ROC curve contains much more information aboutaccuracy,sensitivity and specificity. Weighting A weighted c-index is used when the cost of failing to predict a positive outcome (like a test for canc...
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