Summary Functions

Source: R/summary_functions.R

  • continuous_summary_fns() returns a named list of summary functions for continuous variables. Some functions include slight modifications to their base equivalents. For example, the min() and max() functions return NA instead of Inf when an empty vector is passed. Statistics "p25" and "p75" are calculated with quantile(type = 2), which matches SAS's default value.

continuous_summary_fns(
  summaries = c("N", "mean", "sd", "median", "p25", "p75", "min", "max"),
  other_stats = NULL
)

Arguments

summaries

(character)
a character vector of results to include in output. Select one or more from 'N', 'mean', 'sd', 'median', 'p25', 'p75', 'min', 'max'.

other_stats

(named list)
named list of other statistic functions to supplement the pre-programmed functions.

Value

named list of summary statistics

Examples

# continuous variable summaries
ard_summary(
  ADSL,
  variables = "AGE",
  statistic = ~ continuous_summary_fns(c("N", "median"))
)
#> {cards} data frame: 2 x 8
#>   variable context stat_name stat_label stat fmt_fun
#> 1      AGE summary         N          N  254       0
#> 2      AGE summary    median     Median   77       1
#> ℹ 2 more variables: warning, error