7.3 Temporal Sampling

In the parameters we specify a list, with the temporal variable time, the grouping variable with which the temporal sampling occurs group, the between group variance (as a proportion) in sampling times variance and the within group sample size n:

pop_data <- simulate_population(
  data_structure = make_structure("day(100) + individual(100)",repeat_obs=1),

  parameters = list(
    individual = list( 
      vcov = 0.1
    ),
    day=list(
        covariate=TRUE, 
        beta=0.4
    ), 
    residual = list(
      vcov = 0.8
    )
  ),

  sample_type = "temporal", 
  sample_param = list(
    time = c("day"), 
    group = c("individual"), 
    variance = c(0.1,0.2), 
    n=4), 
  
)

sample_data <- get_sample_data(pop_data)