helper_TS: Helper function for TS method.
In gokmenzararsiz/dtComb: Statistical Combination of Diagnostic Tests

helper_TS

R Documentation

Helper function for TS method.

Description

The helper_TS function calculates the combination coefficient and optimized value of given biomarkers for the TS method.

Usage

helper_TS(theta, markers, status)

Arguments

`theta`	a `numeric` parameter that will be estimated in TS method for the combination score
`markers`	a `numeric` data frame that contains the biomarkers
`status`	a `factor` data frame that includes the actual disease status of the patients

Value

A numeric Optimized value calculated with combination scores using theta

Author(s)

Serra Ilayda Yerlitas, Serra Bersan Gengec, Necla Kochan, Gozde Erturk Zararsiz, Selcuk Korkmaz, Gokmen Zararsiz

Examples

# call data
data(laparotomy)

# define the function parameters
markers <- cbind(laparotomy$ddimer, laparotomy$log_leukocyte)
status <- factor(laparotomy$group, levels = c("not_needed", "needed"))

t <- 0.5

stat <- helper_TS(theta = t, markers = markers, status = status)

gokmenzararsiz/dtComb documentation built on April 17, 2025, 12:50 p.m.