dataOrder: Order a data frame by subject and ordered time variable

In gsearly: Creates Group Sequential Trial Designs when Early Outcomes are Available

Order a data frame by subject and ordered time variable

Description

Orders a user supplied data frame by subject and ordered time variable.

Usage

dataOrder(data, datanames=c("id","atime","catime",
                                            "intervention","outcome"))

Arguments

data	A data frame structured as those from function simdataExtract.
datanames	Names of the five required data variables; participant identifier, time-point, standardized (continuous) time-point (see tfuStandard), intervention arm and outcome, in that order; e.g. c("id","atime","catime","intervention","outcome")).

Value

Returns an ordered data frame.

Examples

 data(qol)
 oqol <- dataOrder(qol,datanames=c("Subject","Weeks","STime","Treat","QoL"))
 head(qol, n=50)

gsearly documentation built on July 10, 2026, 5:09 p.m.