Nothing
perfect.trees<-function (TP, FN, TN, FP, study, data)
{
na.act <- getOption("na.action")
if (missing(data))
data <- NULL
no.data <- is.null(data)
if (is.null(data)) {
data <- sys.frame(sys.parent())
}
else {
if (!is.data.frame(data)) {
data <- data.frame(data)
}
}
mf <- match.call()
mf.TP <- mf[[match("TP", names(mf))]]
mf.FN <- mf[[match("FN", names(mf))]]
mf.TN <- mf[[match("TN", names(mf))]]
mf.FP <- mf[[match("FP", names(mf))]]
mf.study <- mf[[match("study", names(mf))]]
mf.mods <- mf[[match("mods", names(mf))]]
TP <- eval(mf.TP, data, enclos = sys.frame(sys.parent()))
FN <- eval(mf.FN, data, enclos = sys.frame(sys.parent()))
TN <- eval(mf.TN, data, enclos = sys.frame(sys.parent()))
FP <- eval(mf.FP, data, enclos = sys.frame(sys.parent()))
study <- eval(mf.study, data, enclos = sys.frame(sys.parent()))
mods <- eval(mf.mods, data, enclos = sys.frame(sys.parent()))
freq <- NULL
treeid <- rep(seq(1:length(study)), each = 4)
study_id <- rep(study, each = 4)
for (i in 1:length(study)) {
freq <- c(freq, TP[i], FN[i], FP[i], TN[i])
}
salida <- data.frame(study_id, treeid, freq)
formultexA <- rep("a", length(study))
formultexO <- rep("a", length(study))
formultexF <- rep("a", length(study))
formultexR <- rep("a", length(study))
for (i in 1:length(study)) {
formultexA[i] <- paste0("P", i, "*sensitivity,")
formultexO[i] <- paste0("P", i, "*(1-sensitivity),")
formultexF[i] <- paste0("(1-P", i, ")*(1-specificity),")
formultexR[i] <- paste0("(1-P", i, ")*specificity,")
}
formultexR[length(study)] <- paste0("(1-P", i, ")*specificity )")
formultex <- "specmodel<-mptspec("
for (i in 1:length(study)) {
formultex <- paste0(formultex, formultexA[i], formultexO[i],
formultexF[i], formultexR[i])
}
mpt_pf <- mpt(spec = eval(parse(text = formultex)), data = salida,
start = c(0.7, 0.5, rep(0.5, length(study))))
resultado <- summary(mpt_pf)
rownames(resultado$coefficients)[1] <- paste0("Prevalence_",
study[1])
for (i in 4:(length(study) + 2)) {
rownames(resultado$coefficients)[i] <- paste0("Prevalence_",
study[i - 2])
}
output <- resultado
class(output) <- "perfect.trees"
output
}
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