add_time_function_vars {SimTimeVar}

Creates linear time-function variables

Description

Given variable-specific slopes and intercepts for a cluster, creates continuous variables that increase or decrease linearly in time (with normal error with standard deviation error.SD) and adds them to the dataframe.

Usage

add_time_function_vars(d4, obs, parameters)

Arguments

d4

The dataframe to which to add the time-function variables.

obs

The number of observations per cluster.

parameters

The parameters matrix.

Details

See make_one_dataset for additional information.