MonoInc (version 1.1)

simDEC_data: Simulated Decreasing Data

Description

This data was simulated to be monotonically decreasing. There are 500 individuals, with a random number of data points. Each individual has a two-level random effect (intercept and slope), a common intercept, and a random error term. The ages range from 0 to 10 years, which is given in months.

Usage

data("simDEC_data")

Format

A data frame with 5505 observations on the following 3 variables.

id

a numeric vector of the identification number of each individual

age

a numeric vector of the age in months

y

a numeric vector of measurements

References

http://blog.stata.com/2014/07/18/how-to-simulate-multilevellongitudinal-data/

Examples

data(simDEC_data)
library(sitar)

mplot(x=age, y=y, id=id, data=simDEC_data, col=id, main="Individual Measurement Curves")