Check for missing ARM or ARMCD values in DM

Source: R/check_dm_armcd.R

This check looks for missing ARM or ARMCD values

check_dm_armcd(DM)

Arguments

DM

Demographics SDTM dataset with variables USUBJID, ARM, ARMCD

Value

boolean value if check failed or passed with 'msg' attribute if the test failed

Author

Rena Wang

Examples


DM <- data.frame(
 USUBJID = 1:3,
 ARM = 1:3,
 ARMCD = 1:3
)

check_dm_armcd(DM)
#> [1] TRUE

DM$ARMCD[1] <- NA
check_dm_armcd(DM)
#> [1] FALSE
#> attr(,"msg")
#> [1] "Total number of patients with missing ARM/ARMCD values is 1. "
#> attr(,"data")
#>   USUBJID ARM ARMCD
#> 1       1   1    NA

DM$ARM[2] <- NA
check_dm_armcd(DM)
#> [1] FALSE
#> attr(,"msg")
#> [1] "Total number of patients with missing ARM/ARMCD values is 2. "
#> attr(,"data")
#>   USUBJID ARM ARMCD
#> 1       1   1    NA
#> 2       2  NA     2

DM$ARMCD <- NULL
check_dm_armcd(DM)
#> [1] FALSE
#> attr(,"msg")
#> [1] "DM is missing the variable: ARMCD"