sens.spec: sensitivity and specificity of an assessment instrument

In wikibooks: Functions and Datasets of the German WikiBook "GNU R"

sensitivity and specificity of an assessment instrument

Description

This function generates sensitivity and specificity for all possible cut-off-points of an assessment instrument using the assessment-scores.

Usage

sens.spec(x, y, risk = 1, dir = "LESS", plot = F)

Arguments

x	score of an assessment-instrument (numeric)
y	a factor which classify x to positive or negative group
risk	y-value for the positive group (e.g. 1 or "y"))
dir	"LESS" if a low (x) leads to positive group; "GREATER" whether a high (x) leads to positive group
plot	logical whether a plot should be generated

Author(s)

Produnis

References

https://de.wikibooks.org/wiki/GNU_R:_Programmierbeispiele#Beispiel_2

Examples

# Using the cms-Dataset
## Not run: sens.spec(cms$ascore, cms$arisk, risk=1)

wikibooks documentation built on May 10, 2022, 5:11 p.m.