Pairs needed for a correlation confidence interval of given limits

n = 4 (z_(1 - alpha/2) / (atanh(upper) - atanh(lower)))^2 + 3 (Hedderich, Sachs & Reynarowych 2023, eq 6.155).

Usage

corcin(lower, upper, conf_level = 0.95)

Arguments

lower, upper

Required limits, -1 < lower < upper < 1.

conf_level

Confidence level.

Value

Named list: n (rounded up), n_exact.

References

Hedderich, J., Sachs, L. & Reynarowych, Z. (2023). Applied Statistics: Methods Using R. Springer.

Examples

corcin(0.5, 0.8)$n
#> [1] 54