dtc_dupl_early: Check if start dates are duplicated or earlier than prior...

In sdtmchecks: Data Quality Checks for Study Data Tabulation Model (SDTM) Datasets

Check if start dates are duplicated or earlier than prior visit date

Description

This is a core function for checking if start dates are duplicated or earlier than last visit's (possible datetime data entry error), can be used in separate checks for each domain

Usage

dtc_dupl_early(dts, vars, groupby, dtc, ...)

Arguments

dts	dataset, e.g. EX
vars	variables in a form c("USUBJID", "EXTRT", "VISITNUM", "VISIT", "EXSTDTC")
groupby	variables used for grouping and visit.order derivation
dtc	the date variable
...	variables used for ordering before visit.order derivation

Value

dataframe with records of duplicated or earlier than last visit date

Author(s)

James Zhang

sdtmchecks documentation built on Sept. 11, 2024, 9:34 p.m.