DBMHAnalysis
(Package: RJafroc) :
DBM analysis with Hillis improvements
Performs Dorfman-Berbaum-Metz significance testing, with Hillis improvements, for the specified dataset.
● Data Source:
CranContrib
● Keywords:
● Alias: DBMHAnalysis
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0 images
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EmpiricalOpCharac
(Package: RJafroc) :
Plot empirical operating characteristic
Plot emprirical operating characteristics (operating points connected by straight lines) for specified trts and rdrs in the dataset.
● Data Source:
CranContrib
● Keywords:
● Alias: EmpiricalOpCharac
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4 images
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ORHAnalysis
(Package: RJafroc) :
Obuchowski-Rockette analysis with Hillis improvements
Performs Obuchowski-Rockette analysis with Hillis improvements for the specified dataset.
● Data Source:
CranContrib
● Keywords:
● Alias: ORHAnalysis
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0 images
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ReadDataFile
(Package: RJafroc) :
Reads the data file and creates a dataset object
Reads the dataset file to be analyzed and creates a dataset object for subsequent analysis.
● Data Source:
CranContrib
● Keywords:
● Alias: ReadDataFile
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0 images
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RJafrocGui
(Package: RJafroc) :
Graphical user interface to pkg{RJafroc
Start a graphical user interface which is functionally similar to Windows JAFROC software (Version 4.2.1)
● Data Source:
CranContrib
● Keywords:
● Alias: RJafrocGui
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0 images
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SampleSizeGivenJ
(Package: RJafroc) :
Calculate number of cases for specified number of readers J to achieve the desired power for ROC studies.
Calculate required number of cases to achieve the desired power for specified number of readers J and DBM or OR variability parameters.
● Data Source:
CranContrib
● Keywords:
● Alias: SampleSizeGivenJ
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0 images
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FROC2HrROC
(Package: RJafroc) :
Convert FROC dataset
Convert an FROC dataset to a highest rating inferred ROC dataset
● Data Source:
CranContrib
● Keywords:
● Alias: FROC2HrROC
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0 images
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Caclulate the figure of merit (an objective measure of observer performance) for each treatment-reader combination.
● Data Source:
CranContrib
● Keywords:
● Alias: FigureOfMerit
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0 images
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Software for the analysis of data acquired in observer performance studies conducted using ROC, FROC or ROI multiple reader multiple case (MRMC) data collection paradigms. It is an R implementation of current JAFROC analysis (http://www.devchakraborty.com) with enhancements including allowing choice between DBM or OR significance testing methods, with Hillis improvements, and choices of several figures of merit, plotting empirical operating characteristics, sample size estimation tools and generating formatted outputs.
● Data Source:
CranContrib
● Keywords:
● Alias: RJafroc-package
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0 images
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frocData
(Package: RJafroc) :
An example FROC dataset provided by Dr. Federica Zanca.
In this example dataset there are 100 non-diseased and 100 lesion containing mammography images. The maximum number of lesions per diseased case is 3. Four radiologists intepreted all images using five image processing algorithms (modalities). They marked and rated suspicious regions on an integer 1 - 5 scale, where larger ratings represented greater confidence in presence of disease. Only modalities 4 and 5 have been retained in this dataset. The *.xlsx file can be downloaded from http://www.devchakraborty.com/FrocData/frocData.xlsx. The dataset file can then be read into a dataset object using ReadDataFile function.
● Data Source:
CranContrib
● Keywords:
● Alias: frocData
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0 images
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