Simulated degenerate ROC dataset (for testing purposes)

A simulated degenerated dataset. A degenerate dataset is defined as one with no interior operating points on the ROC plot. Such data tend to be observed with expert level radiologists. This dataset is used to illustrate the robustness of CBM and RSM fitting models.

datasetDegenerate

Format

A list with 3 elements: $ratings, $lesions and $descriptions; $ratings contain 3 elements, $NL, $LL and $LL_IL as sub-lists; $lesions contain 3 elements, $perCase, $IDs and $weights as sub-lists; $descriptions contain 7 elements, $fileName, $type, $name, $truthTableStr, $design, $modalityID and $readerID as sub-lists;

  • rating$NL num Array[1, 1, 1:15, 1] ratings of non-lesion localizations NLs

  • rating$LL num Array[1, 1, 1:10, 1] ratings of lesion localizations LLs

  • rating$LL_IL NA This placeholder is used only for LROC data

  • lesions$perCase int Array[1:10], number of lesions per diseased case

  • lesions$IDs num Array[1:10, 1] , numeric labels of lesions on diseased cases

  • lesions$weights num Array[1:10, 1], weights (or clinical importance) of lesions

  • descriptions$fileName chr "datasetDegenerate", base name of dataset in `data` folder

  • descriptions$type chr "ROC" the data type

  • descriptions$name chr "SIM-DEGENERATE", the name of the dataset

  • descriptions$truthTableStr NA truth table structure

  • descriptions$design chr "FCTRL-X-MOD", study design factorial dataset

  • descriptions$modalityID chr "1" modality label

  • descriptions$readerID chr "1", reader labels

Examples

res <- str(datasetDegenerate)
#> List of 3
#>  $ ratings     :List of 3
#>   ..$ NL   : num [1, 1, 1:15, 1] 1 1 1 1 1 ...
#>   ..$ LL   : num [1, 1, 1:10, 1] 1 1 1 1 1 2 2 2 2 2
#>   ..$ LL_IL: logi NA
#>  $ lesions     :List of 3
#>   ..$ perCase: num [1:10] 1 1 1 1 1 1 1 1 1 1
#>   ..$ IDs    : num [1:10, 1] 1 1 1 1 1 1 1 1 1 1
#>   ..$ weights: num [1:10, 1] 1 1 1 1 1 1 1 1 1 1
#>  $ descriptions:List of 7
#>   ..$ fileName     : chr "datasetDegenerate"
#>   ..$ type         : chr "ROC"
#>   ..$ name         : chr "SIM-DEGENERATE"
#>   ..$ truthTableStr: logi NA
#>   ..$ design       : chr "FCTRL"
#>   ..$ modalityID   : chr "1"
#>   ..$ readerID     : chr "1"