The RJafroc Quick Start Book
2022-12-28
Chapter 1 Preface
- This online book is for those already somewhat familiar running Windows JAFROC to analyze data. It is also intended for those unfamiliar with Windows JAFROC but have read the other books and wish to apply the methods.
- The Windows program has been replaced by
RJafroc
. - This book dives into how to use
RJafroc
to analyze ROC/FROC data. - It starts with explanation of the dataset structures for ROC and FROC studies.
- This is followed by an explanation of DBM and OR analyses.
- TBA.
1.1 Rationale and Organization
- Intended as an online update to my print book (Dev P. Chakraborty 2017).
- All references in this book to
RJafroc
refer to the R package with that name (case sensitive) (D. Chakraborty and Zhai 2022). - Since its publication in 2017
RJafroc
, on which theR
code examples in the print book depend, has evolved considerably causing many of the examples to “break” if one uses the most current version ofRJafroc
. The code will still run if one usesRJafroc
0.0.1 but this is inconvenient and misses out on many of the software improvements made since the print book appeared. - This gives me the opportunity to update the print book.
- The online book has been divided into 3 books.
- This book: RJafrocQuickStartBook.
- The RJafrocRocBook book.
- The RJafrocFrocBook.
1.2 Getting help on the software
- If you have installed
RJafroc
fromGitHub
:- ?
RJafroc-package
(RStudio will auto complete …) followed by Enter. - Scroll down all the way and click on
Index
- ?
- Regardless of where you installed from you can use the
RJafroc
website:- RJafroc help site
- Look under the
Reference
tab. - For example, for help on the function
PlotEmpiricalOperatingCharacteristics
: - PlotEmpiricalOperatingCharacteristics
1.3 TBA Acknowledgements
1.3.1 Persons who have stimulated my thinking:
Harold Kundel, MD
Claudia Mello-Thoms, PhD
Dr. Xuetong Zhai (contributed significantly to the significance testing sections and other chapters of my book).
1.3.2 Contributors to the software
Dr. Xuetong Zhai (he developed the first version of RJafroc
)
Dr. Peter Phillips
Online Latex Editor at this website. I found this very useful in learning and using Latex to write math equations.
1.4 Accessing files and code
To access files/code one needs to fork
the GitHub
repository. This will create, on your computer, a copy of all files used to create this document. To compile the files try Build Book
and select gitbook
. You will probably get errors corresponding to missing packages that are not loaded on your machine. All required packages are listed in the DESCRIPTION file. Install those packages and try again …