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Sample covariates using bootstrap

Usage

sample_covariates_bootstrap(
  data,
  n_subjects = nrow(data),
  conditional = NULL,
  seed = NULL,
  na.rm = TRUE,
  ...
)

Arguments

data

data.frame (n x p) containing the original, observed, time-invariant covariates (ID should not be included) that will be used to inform the imputation.

n_subjects

number of simulated subjects, default is the number of subjects in the data.

conditional

list with conditional limits for sampled population. For continuous covariates, specify a numeric vector of length 2 giving the c(min, max) range, e.g. list("WT" = c(40, 60), "BMI" = c(15, 25)). For categorical covariates (those listed in cat_covs), specify a character vector of the allowed category values, e.g. list("SEX" = c("F")).

seed

integer random seed passed to set.seed() for reproducibility. Default NULL does not set a seed.

na.rm

logical. If TRUE (default), rows with NA in any column are dropped before sampling.

...

additional arguments passed to mice::mice() function

Value

a data.frame with the simulated covariates, with n_subjects rows and p columns