to_id {HQM}

Event data frame

Description

Creates a data frame with only one entry per individual from a data frame with time dependent data. The resulting data frame focusses on the event time and the last observed marker value.

Usage

to_id(data_set)

Arguments

data_set

A data frame of time dependent data points. Missing values are allowed.

Details

The function to_id uses a data frame of time dependent marker data to create a smaller data frame with only one entry per individual, the last observed marker value and the event time. Note that the column indicating the individuals must have the name id. Note also that this data frame is similar to pbc2.id from the JM package with the difference that the last observed marker value instead of the first one is captured.

Value

A data frame with only one entry per individual.

Examples

data_set.id = to_id(pbc2)