size.ci.yule {statpsych} | R Documentation |
Sample size for a Yule's Q confidence interval
Description
Computes the sample size required to estimate Yule's Q with desired confidence interval precision. Set the Yule's Q planning value to the smallest absolute value within a plausible range for a conservatively large sample size.
Usage
size.ci.yule(alpha, p1, p2, Q, w)
Arguments
alpha |
alpha level for 1 - alpha confidence |
p1 |
planning value for row 1 marginal proportion |
p2 |
planning value for column 1 marginal proportion |
Q |
planning value of Yule's Q |
w |
desired confidence interval width |
Value
Returns the required sample size
Examples
size.ci.yule(.05, .3, .2, .5, .4)
# Should return:
# Sample size
# 354
[Package statpsych version 1.7.0 Index]