Compute confidence intervals for the ratio (theta1/theta0) of two parameters based on point estimates and confidence intervals for the two parameters, theta1 and theta0.
MOVERR(theta0, ci0, theta1, ci1, alternative = "two.sided")a single numeric vale, the point estimate for the parameter to appear in the denominator
vector with two numeric values, the lower and upper confidence limits for the parameter to appear in the denominator
a single numeric vale, the point estimate for the parameter to appear in the numerator
vector with two numeric values, the lower and upper confidence limits for the parameter to appear in the numerator
a character string, "two.sided" for two-sided intervals, "less" for upper limits, "greater" for lower limits only
a list with elements
numeric, the lower and upper confidence limits for the ratio
the point estimate for the ratio
This function implements Eq. (9) in Donner and Zou (2012), for computing confidence intervals for a ratio of two parameters, when their estimators are uncorrelated.
Donner and Zou (2012): Closed-form confidence intervals for functions of the normal mean and standard deviation. Statistical Methods in Medical Research 21(4):347-359.