data_survival function

Data file for survival analysis

Wrapper function for data file in survival analysis.

data_survival(time, treatment, event, .data = NULL)

Arguments

• time: vector. exposure time for the subjects. It must be the same length as the treatment variable.
• treatment: vector. treatment assignment for patients, 1 for treatment group and 0 for control group
• event: vector. The status indicator, normally 0=alive, 1=dead. Other choices are TRUE/FALSE (TRUE = death) or 1/2 (2=death). For censored data, the status indicator is 0=right censored, 1 = event at time. Although unusual, the event indicator can be omitted, in which case all subjects are assumed to have an event.
• .data: NULL. stores the survival data for analysis, please do not fill it in.

Returns

a list with time, treatment, and event with time-to-event outcome.

Examples

data_survival(time       = c(6.2, 8.2, 8.0, 2.3),
                        treatment  = c(0, 1, 0, 1),
                        event      = c(1, 1, 1, 1))