Check Variable Names — check_variables • metatools

This function checks the variables in the dataset against the variables defined in the metacore specifications. If everything matches the function will return `TRUE` and a message starting everything is as expected. If there are additional or missing variables and error will explain the discrepancies

Usage

check_variables(data, metacore, dataset_name = NULL)

Arguments

data: Dataset to check
metacore: metacore object that only contains the specifications for the dataset of interest.
dataset_name: Optional string to specify the dataset. This is only needed if the metacore object provided hasn't already been subsetted.

Value

message if the dataset matches the specification and the dataset, and error otherwise

Examples

library(haven)
library(metacore)
library(magrittr)
load(metacore_example("pilot_ADaM.rda"))
spec <- metacore %>% select_dataset("ADSL")
data <- read_xpt(metatools_example("adsl.xpt"))
check_variables(data, spec)
#> No missing or extra variables
#> # A tibble: 254 × 49
#>    STUDYID     USUBJID SUBJID SITEID SITEGR1 ARM   TRT01P TRT01PN TRT01A TRT01AN
#>    <chr>       <chr>   <chr>  <chr>  <chr>   <chr> <chr>    <dbl> <chr>    <dbl>
#>  1 CDISCPILOT… 01-701… 1015   701    701     Plac… Place…       0 Place…       0
#>  2 CDISCPILOT… 01-701… 1023   701    701     Plac… Place…       0 Place…       0
#>  3 CDISCPILOT… 01-701… 1028   701    701     Xano… Xanom…      81 Xanom…      81
#>  4 CDISCPILOT… 01-701… 1033   701    701     Xano… Xanom…      54 Xanom…      54
#>  5 CDISCPILOT… 01-701… 1034   701    701     Xano… Xanom…      81 Xanom…      81
#>  6 CDISCPILOT… 01-701… 1047   701    701     Plac… Place…       0 Place…       0
#>  7 CDISCPILOT… 01-701… 1097   701    701     Xano… Xanom…      54 Xanom…      54
#>  8 CDISCPILOT… 01-701… 1111   701    701     Xano… Xanom…      54 Xanom…      54
#>  9 CDISCPILOT… 01-701… 1115   701    701     Xano… Xanom…      54 Xanom…      54
#> 10 CDISCPILOT… 01-701… 1118   701    701     Plac… Place…       0 Place…       0
#> # … with 244 more rows, and 39 more variables: TRTSDT <date>, TRTEDT <date>,
#> #   TRTDURD <dbl>, AVGDD <dbl>, CUMDOSE <dbl>, AGE <dbl>, AGEGR1 <chr>,
#> #   AGEGR1N <dbl>, AGEU <chr>, RACE <chr>, RACEN <dbl>, SEX <chr>,
#> #   ETHNIC <chr>, SAFFL <chr>, ITTFL <chr>, EFFFL <chr>, COMP8FL <chr>,
#> #   COMP16FL <chr>, COMP24FL <chr>, DISCONFL <chr>, DSRAEFL <chr>, DTHFL <chr>,
#> #   BMIBL <dbl>, BMIBLGR1 <chr>, HEIGHTBL <dbl>, WEIGHTBL <dbl>, EDUCLVL <dbl>,
#> #   DISONSDT <date>, DURDIS <dbl>, DURDSGR1 <chr>, VISIT1DT <date>, …