processSurvData {psichomics} | R Documentation

## Process survival data to calculate survival curves

### Description

Process survival data to calculate survival curves

### Usage

    processSurvData(
      event,
      timeStart,
      timeStop,
      followup,
      group,
      clinical,
      survTime = NULL
    )

### Arguments

`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
`group` | Character: group relative to each subject
`clinical` | Data frame: clinical data
`survTime` | `survTime` object: Times to follow up, time start, time stop and event (optional)

### Details

The `event` time is only used to determine whether the event has occurred (`1`) or not (`0`) in case of missing values.

If `survTime = NULL`, survival times are obtained from the clinical dataset according to the names given in `timeStart`, `timeStop`, `event` and `followup`. This may become quite slow when used in a loop. If the aforementioned variables are constant, consider running `getAttributesTime()` outside the loop and using its output via the `survTime` argument of this function (see Examples).

### Value

Data frame with terms needed to calculate survival curves

[Package psichomics version 1.20.2 Index]