getAttributesTime {psichomics} | R Documentation |
Retrieve the time for given columns in a clinical dataset
getAttributesTime(clinical, event, timeStart, timeStop = NULL, followup = "days_to_last_followup") getColumnsTime(clinical, event, timeStart, timeStop = NULL, followup = "days_to_last_followup")
clinical |
Data frame: clinical data |
event |
Character: name of column containing time of the event of interest |
timeStart |
Character: name of column containing starting time of the interval or follow up time |
timeStop |
Character: name of column containing ending time of the interval (only relevant for interval censoring) |
followup |
Character: name of column containing follow up time |
Data frame containing the time for the given columns
df <- data.frame(followup=c(200, 300, 400), death=c(NA, 300, NA)) rownames(df) <- paste("patient", 1:3) getAttributesTime(df, event="death", timeStart="death", followup="followup")