Ch14-mystack: Stack a dataset

In PwrGSD: Power in a Group Sequential Design

Description

Given a dataframe containing one or more variables named with a common prefix, this function creates a stacked dataset with one set of observed values of the variables (in order of occurence) per line.

Usage

  mystack(object, fu.vars, create.idvar = FALSE)

Arguments

object	a dataframe containing one or more variables named with a common prefix
fu.vars	a list of the unique prefixes
create.idvar	Do you want to add an ID variable with a common value given to all records resulting from a given input record? Default is FALSE

Value

A stacked dataframe

Author(s)

Grant Izmirlian <[e-mail]>

Examples

  ## none as yet

Example output

Loading required package: survival
PwrGSD 2.3.1

PwrGSD documentation built on Dec. 11, 2021, 9:43 a.m.