ci.yule {statpsych}R Documentation

Confidence interval for Yule's Q

Description

Computes a confidence interval for Yule's Q measure of association using a transformation of a confidence interval for an odds ratio with .5 added to each cell frequency. This function requires the frequency counts from a 2 x 2 contingency table for two dichotomous variables.

Usage

ci.yule(alpha, f00, f01, f10, f11)

Arguments

alpha

alpha level for 1-alpha confidence

f00

number of participants with y = 0 and x = 0

f01

number of participants with y = 0 and x = 1

f10

number of participants with y = 1 and x = 0

f11

number of participants with y = 1 and x = 1

Value

Returns a 1-row matrix. The columns are:

Examples

ci.yule(.05, 229, 28, 96, 24)

# Should return:
#      Estimate         LL       UL
# [1,] 0.343067 0.06247099 0.573402



[Package statpsych version 1.3.0 Index]