Digest tibbles and vector content

Source: R/verb_digest.R

A kind of improved summary

digest(x)

Arguments

x

tibble or vector

Details

For numeric columns, returns a tiny summary. For character/factor columns, returns a count table. For the two previous cases tests if values are constant or unique, respectively. In both cases, returning a tibble would not be useful, but knowing that a character/factor is unique can be useful when making an id column. Also report NA cases, if any. For tibbles, prints a colwise digest.

Examples

# numeric
1:5 %>% digest
#> # A tibble: 3 x 2
#>   quantile value
#>   <chr>    <dbl>
#> 1 min          1
#> 2 median       3
#> 3 max          5
c(NA, 1:5) %>% digest() # count NA
#> # A tibble: 4 x 2
#>   quantile value
#>   <chr>    <dbl>
#> 1 <NA>         1
#> 2 min          1
#> 3 median       3
#> 4 max          5
rep(1, 5) %>% digest()  # constant
#> [1] "constant (5)"

# factor
iris$Species %>% digest
#> # A tibble: 3 x 2
#>   level      count
#>   <chr>      <int>
#> 1 setosa        50
#> 2 versicolor    50
#> 3 virginica     50
c(NA, iris$Species) %>% digest() # count NA
#> # A tibble: 4 x 2
#>   quantile value
#>   <chr>    <dbl>
#> 1 <NA>         1
#> 2 min          1
#> 3 median       2
#> 4 max          3
factor(rep("a", 5)) %>% digest() # unique
#> # A tibble: 1 x 2
#>   level count
#>   <chr> <int>
#> 1 a         5