EX <- data.frame(
USUBJID = 1:10,
EXTRT = 1:10,
EXOCCUR = c(rep("Y",5), rep("",5)),
EXSTDTC = "2016-01-01",
EXDOSE = 1:10,
stringsAsFactors=FALSE
)
EX$EXTRT[1]=""
EX$EXTRT[2]="NA"
EX$EXTRT[3]=NA
EX$EXTRT[6]=""
EX$EXTRT[7]="NA"
EX$EXTRT[8]=NA
check_ex_extrt_exoccur(EX)
EX$EXOCCUR=NULL
check_ex_extrt_exoccur(EX)
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