The function includes vertical lines for the threshold and confidence interval in a plot created with plot.thres2().
● Data Source:
CranContrib
● Keywords: plot, threshold
● Alias: lines.thres2
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The function provides a graphic including the three sample densities, the thresholds and their confidence intervals.
● Data Source:
CranContrib
● Keywords: plot, threshold
● Alias: plot.thres3
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This function calculates the second partial derivatives of the cost function at a given pair of thresholds.
● Data Source:
CranContrib
● Keywords: derivative, threshold
● Alias: secondDer3
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This function computes the threshold estimates and their corresponding confidence intervals in a three-state setting.
● Data Source:
CranContrib
● Keywords: bootstrap, threshold
● Alias: thres3
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This function estimates the theoretical optimum thresholds for the specific distribution parameters, decision costs and prevalences in a three-state setting.
● Data Source:
CranContrib
● Keywords: threshold
● Alias: thresTH3
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Calculates the second partial derivative of the cost function at a given threshold.
● Data Source:
CranContrib
● Keywords: derivative, threshold
● Alias: secondDer2
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The ThresholdROC package provides point and interval estimations of the optimum threshold as well as graphical tools for continuous diagnostic tests (two- and three- state settings). The point estimation is based on the definition of a cost function which we opt to minimise. An analytical estimator is available for the binormal and trinormal model and the empirical one is used for all settings. The interval estimation is based on the Delta method variance estimator in a binormal parametric setting and on methods on non-linear equations for the trinormal setting. Bootstrap methods are also provided for the confidence intervals.
● Data Source:
CranContrib
● Keywords: package
● Alias: ThresholdROC
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This function plots the ROC curve and the cost function associated to the disease prevalence and costs.
● Data Source:
CranContrib
● Keywords: ROC, threshold
● Alias: plotCostROC
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The function includes vertical lines for the thresholds and confidence intervals in a plot created with plot.thres3().
● Data Source:
CranContrib
● Keywords: plot, threshold
● Alias: lines.thres3
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This function computes the threshold estimate and its corresponding confidence interval in a two-state setting.
● Data Source:
CranContrib
● Keywords: bootstrap, threshold
● Alias: thres2
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providing 
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