MeasErrorRandom {mecor}

Create a Random Measurement Error Object

Description

This function creates a random measurement error object, usually used as a covariate in the formula argument of mecor if one wants to correct for random measurement error in that variable

Usage

MeasErrorRandom(substitute, variance)

Arguments

substitute

a vector containing the error-prone measure

variance

a numeric quantifying the assumed variance of the random measurement error

Value

MeasErrorRandom returns an object of class "MeasErrorRandom".

An object of class MeasErrorRandom is a list containing the substitute variable, the assumed variance of the random measurement error in that variable and, the attributes input (the name of the substitute variable) and call (the matched call).

Author(s)

Linda Nab, [e-mail]

Examples

## random measurement error in a covariate:
# internal covariate-validation study
data(bloodpressure)
with(bloodpressure, MeasErrorRandom(sbp30, variance = 0.25))