openVA (version 1.1.2)

getCCC: Calculate Overall chance-corrected concordance (CCC)

Description

Denote the cause-specific accuracy for the j-th cause to be (# of deaths correctly assigned to cause j) / (# of death due to cause j). For causes 1, 2, ..., C, the cause-specific CCC is computed for the j-th cause is defined to be (j-th cause-specific accuracy - 1 / C) / (1 - 1 / C) and the overall CCC is the average of each cause-specific CCC.

Usage

getCCC(cod, truth, C = NULL)

Arguments

cod

a data frame of estimated cause of death. The first column is the ID and the second column is the estimated cause.

truth

a data frame of true causes of death. The first column is the ID and the second column is the estimated cause.

C

the number of possible causes to assign. If unspecified, the number of unique causes in cod and truth will be used.

See Also

Other output extraction: getCSMF_accuracy(), getCSMF(), getIndivProb(), getTopCOD()

Examples

est <- data.frame(ID = c(1, 2, 3), cod = c("C1", "C2", "C1"))
truth <- data.frame(ID = c(1, 2, 3), cod = c("C1", "C3", "C3"))
# If there are only three causes
getCCC(est, truth)
# If there are 20 causes that can be assigned
getCCC(est, truth, C = 20)