Summarize simulated numeric variables

Usage

summarize_simulations(data, by = NULL, variables = NULL)

Arguments

data: Simulation data: a simulab_sim or a plain base data.frame.
by: Optional character vector of grouping column names. NULL, the default, summarizes all rows together.
variables: Character vector of numeric variables to summarize. NULL, the default, selects every numeric non-grouping column.

Value

A plain base data.frame with one row per group and variable: the by columns (none when by is NULL), then variable, observations (the non-missing count), mean, sd, minimum and maximum. Missing values are left out of the statistics; a group with none left reports NA statistics.

Examples

data <- simulate_ttest(n_a = 50, n_b = 50, mean_a = 0, mean_b = 0.6, seed = 1)
summarize_simulations(data, by = "group", variables = "outcome")
#>   group variable observations      mean        sd   minimum  maximum
#> 1     A  outcome           50 0.1004483 0.8313939 -2.214700 1.595281
#> 2     B  outcome           50 0.7173265 0.9688279 -1.204959 3.001618