SurveilTimeByRow | R Documentation |
This determines the time difference between each test for a patient in days It returns the time since the first and the last study as a new dataframe.
SurveilTimeByRow(dataframe, HospNum_Id, Endo_ResultPerformed)
dataframe |
dataframe, |
HospNum_Id |
Patient ID |
Endo_ResultPerformed |
Date of the Endoscopy |
Other Basic Analysis - Surveillance Functions:
HowManyOverTime()
,
SurveilFirstTest()
,
SurveilLastTest()
,
TimeToStatus()
aa <- SurveilTimeByRow( Myendo, "HospitalNumber", "Dateofprocedure" )
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