Double Points in Nonlinear Calibration
定义了非线性校准和回归中的双重点，即导致多个点估计或不连通置信区域的未来观测点，并计算了其发生概率的诊断指标。
In nonlinear calibration and regression a double point is defined with respect to estimation and to confidence sets. Loosely speaking, if a future observation is a double point then multiple point estimates or disconnected confidence regions will occur. We investigate the extent of the set of double points. A diagnostic, the probability of their occurrence, is computed.