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News

Version Updates

0.3.0

• CRAN release.
• Converted FORTRAN code for conventional and likelihood-ratio binormal ROC curves to R.
• Remove deprecated argument method from mrmc(), srmc(), and stmc().

0.2.2

• Add Kundel dataset.
• Check for and report partially paired factorial designs.

0.2.1

• Order tests and readers lexically in results from mrmc().
• Rename bichisquare column to bichisquared in binormalLR_curve.

0.2.0

• Implement fast algorithm for unbiased covariance estimation.
• Remove deprecated functions proproc_roc(), proproc_sens(), and proproc_spec().
• Rename argument method to cov in mrmc(), srmc(), and stmc().

0.1.16

• Add functions OR_to_RMH() and RMH_to_OR() for conversion from Obuchowski-Rockette to Roe, Metz & Hillis model parameters and vice versa.

0.1.15

• Implement ROC expected utility metrics binormal_eu(), binormalLR_eu(), and empirical_eu().

0.1.14

• Add progress bar for unbiased covariance calculation.
• Truncate confidence intervals only for sens, spec, and auc metrics.
• Fix direction of ratings in pROC calculation of empirical ROC AUC to allow values < 0.5.

0.1.13

• Add mrmc() support for single readers.
• Rename proproc functions to binormalLR.
• Add parameters() method function for mrmc output.
• Add roc_curves() method function for srmc output.
• Add normalize argument to auc() metrics.
• Redefine srmc() function for single-reader (multi-test) multi-case analysis.
• Add stmc() function for single-reader (single-test) multi-case analysis.

0.1.12

• Fix proproc_sens() and proproc_spec() to use proproc instead of empirical curves.

0.1.11

• Add support for readers nested within tests.
• Add smmc() for single reader multiple case analysis.
• Add parameters() function to extract ROC curve parameters from roc_curves() results.
• Fix partial AUC calculation when specificity ranges are given.
• Add plot option to overlay empirical ROC points on parametric curves.

0.1.10

• Subset data in calls to mrmc() by event/non-event cases for binary_sens()/binary_spec() metrics.
• Add coord_fixed argument to plot() methods.
• Add mean() method for binormal_curves to average over their ROC curve parameters.

0.1.9

• Add binary_sens() and binary_spec() metrics.

0.1.8

• Support sensitivity values in points() methods.
• Implement conventional binormal ROC curves and metrics.
• Add package citation.

0.1.7

• Add roc_curves() function for construction of ROC curves and method functions points() for calculating points on the curves, mean() for averaging multiple curves, and plot() for displaying them graphically.
• Deprecate roc() and proproc().

0.1.6

• Fix unbiased covariance calculation.

0.1.5

• Internal code changes

0.1.4

• Internal code changes.

0.1.3

• Add metric functions for sensitivity, specificity, and partial AUC.

0.1.2

• Initial GitHub upload.

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