tidyvalidate

The goal of tidyvalidate is to simplify the workflow of the validate package to work with data.frames by providing tools to manage the usage of ‘confront’, ‘validator’, ‘violating’, and ‘summary’ functions. It also streamlines the integration with base R’s ‘stop’ and ‘warning’ functions, enhancing error handling and reporting.

Installation

You can install the development version of tidyvalidate like so:

#install.packages("pak")
pak::pak("AngelFelizR/tidyvalidate")

Example - validate_rules

The validate_rules() function can find errors at the column and row level by returning a list with the summary and row_level_errors.

library(tidyvalidate)

simple_validation <-
  validate_rules(mtcars,
                 mpg_string = is.character(mpg),
                 hp_numeric = is.numeric(hp),
                 mpg_low = mpg > 15)

simple_validation
#> $summary
#>          name items passes fails   nNA  error warning
#>        <char> <int>  <int> <int> <int> <lgcl>  <lgcl>
#> 1: mpg_string     1      0     1     0  FALSE   FALSE
#> 2: hp_numeric     1      1     0     0  FALSE   FALSE
#> 3:    mpg_low    32     26     6     0  FALSE   FALSE
#> 
#> $row_level_errors
#> $row_level_errors$mpg_low
#>    Broken Rule   mpg
#>         <char> <num>
#> 1:     mpg_low  14.3
#> 2:     mpg_low  10.4
#> 3:     mpg_low  10.4
#> 4:     mpg_low  14.7
#> 5:     mpg_low  13.3
#> 6:     mpg_low  15.0

Example - action_if_problem

After finding a problem, you can display an error.

try({
  validate_rules(mtcars,
                 mpg_string = is.character(mpg),
                 hp_numeric = is.numeric(hp),
                 mpg_low = mpg > 15) |>
    action_if_problem("We shouldn't have cars with low mpg")
})
#> [1] "We shouldn't have cars with low mpg"
#>          name items passes fails   nNA  error warning
#>        <char> <int>  <int> <int> <int> <lgcl>  <lgcl>
#> 1: mpg_string     1      0     1     0  FALSE   FALSE
#> 2:    mpg_low    32     26     6     0  FALSE   FALSE
#> Error in action_if_problem(validate_rules(mtcars, mpg_string = is.character(mpg),  : 
#>   We shouldn't have cars with low mpg

Or just show a warning.

validate_rules(mtcars,
               mpg_string = is.character(mpg),
               hp_numeric = is.numeric(hp),
               mpg_low = mpg > 15) |>
  action_if_problem("We shouldn't have cars with low mpg",
                    problem_action = "warning")
#> [1] "We shouldn't have cars with low mpg"
#>          name items passes fails   nNA  error warning
#>        <char> <int>  <int> <int> <int> <lgcl>  <lgcl>
#> 1: mpg_string     1      0     1     0  FALSE   FALSE
#> 2:    mpg_low    32     26     6     0  FALSE   FALSE
#> Warning in action_if_problem(validate_rules(mtcars, mpg_string =
#> is.character(mpg), : We shouldn't have cars with low mpg