theil {MultNonParam}

Perform the Theil nonparametric estimation and confidence interval for a slope parameter.

Description

Perform the Theil nonparametric estimation and confidence interval for a slope parameter.

Usage

theil(x, y, conf = 0.9)

Arguments

x

A vector of values of the explanatory variable.

y

A vector of values of the response variable.

conf

Level of confidence interval.

Value

A list with letters and numbers.

• est - An estimate, the median of pairwise slopes.

• ci - A vector of confidence interval endpoints.

Examples

a<-0:19;b<-a^2.5
theil(a,b)