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Generate a lookup table

Source: R/lookup.R
build_lookup.Rd

Generate a lookup table

Usage

build_lookup(data_list)

Arguments

data_list

a list containing at least 1 dataframe

Value

a dataframe summarizing column names and labels

See also

extend_lookup(), edc_lookup()

Examples

x = edc_example()
x$.lookup=NULL
lk = build_lookup(x)
lk
#> ── Lookup table (extraction of 2024-01-01)  ────────────────────────────────────
#>   dataset     nrow  ncol
#>   <chr>      <dbl> <dbl>
#> 1 enrol         50     5
#> 2 db2           50     5
#> 3 db3           50     6
#> 4 short         50     4
#> 5 db1          100     6
#> 6 long_mixed   100     5
#> 7 long_pure    150     4
#> 8 ae           175     6
lk %>% tidyr::unnest(c(names, labels))  
#> # A tibble: 41 × 5
#>    dataset  nrow  ncol names          labels      
#>    <chr>   <dbl> <dbl> <chr>          <named list>
#>  1 enrol      50     5 subjid         <chr [1]>   
#>  2 enrol      50     5 age            <chr [1]>   
#>  3 enrol      50     5 date_naissance <chr [1]>   
#>  4 enrol      50     5 arm            <chr [1]>   
#>  5 enrol      50     5 crfname        <chr [1]>   
#>  6 db2        50     5 subjid         <chr [1]>   
#>  7 db2        50     5 date4          <chr [1]>   
#>  8 db2        50     5 date5          <chr [1]>   
#>  9 db2        50     5 date6          <chr [1]>   
#> 10 db2        50     5 crfname        <chr [1]>   
#> # ℹ 31 more rows