Confidence Interval

Description

This is the basic function for computing a confidence interval on the basis of a sample of data values.

Usage

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ci(x, cl = 0.95, nq = TRUE)

Arguments

x

A numeric vector.

cl

The confidence level for the confidence interval. Defaults to 0.95.

nq

Logical specifying whether to use a normal quantile (i.e. apply qnorm) in the computation of the confidence interval. Defaults to TRUE. If FALSE, then the confidence interval is computed directly with the quantile function.

Value

A vector with two components Lower and Upper giving the lower and upper confidence limits respectively.

See Also

ciplot.corregp, confint.

Examples

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data(HairEye)
haireye.crg <- corregp(Eye ~ Hair * Sex, data = HairEye, b = 3000)
ci(haireye.crg$conf$eigen[, 1])
ci(haireye.crg$conf$eigen[, 2])