Description Usage Arguments Details Value References Examples

Function to calculate specific agreement and overall proportion of agreement for dichotomous variables.

1 2 3 | ```
DiagnosticAgreement.deVet(ratings, CI = T, ConfLevel = 0.95,
correction = c("continuity", "Fleiss", "bootstrap"), NrBoot = 1000,
Parallel = F, no_cores = detectCores() - 1)
``` |

`ratings` |
A dataframe or matrix of N x P with N the number of observations and P the number of raters. |

`CI` |
Logical, indicates if confidence intervals have to be calculated |

`ConfLevel` |
The confidence level to be used in calculating the confidence intervals. Possible values
are |

`correction` |
Method of calculating the confidence intervals (de Vet et al., 2017). The confidence intervals (CI) can be calculated using continuity correction, Fleiss correction or by use of bootstrap samples. |

`NrBoot` |
In case of bootstrap methodology to calculate the CI, the number of bootstrap samples. |

`Parallel` |
Logical, indicates if parallel computing has to be used to compute the confidence intervals. Implemented only when using bootstrapping to calculate the confidence intervals. |

`no_cores` |
Number of cores if parallel computing is used. Default is 1 core less than the number of cores present. |

This function is based on the functions as given in the appendix of the article of de Vet et al. (2017).

A list with the following components:

`SumTable` |
The summed table as defined in the article of de Vet et al. (2017) |

`ObservedAgreem` |
The overall proportion of agreement (with CI). |

`SpecificAgreem` |
The specific agreement for each of the categories (with CIs). |

De Vet HCW, Mokkink LB, Terwee CB, Hoekstra OS, Knol DL. Clinicians are
right not to like Cohenâ€™s k. *BMJ* 2013;346:f2125.

de Vet, H.C.W., Terwee C.B., Knol, D.L., Bouter, L.M. (2006). When to use agreement
versus reliability measures. *Journal of Clinical Epidemiology*, Vol.59(10), pp.1033-1039

de Vet, H.C.W., Dikmans, R.E., Eekhout, I. (2017). Specific agreement on dichotomous outcomes can be
calculated for more than two raters. *Journal of Clinical Epidemiology*, Vol.83, pp.85-89

1 2 3 4 5 | ```
# Load data
data(Agreement_deVetArticle)
Df = Agreement_deVetArticle
DiagnosticAgreement.deVet(Df)
``` |

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