cfb: Change from Baseline

In T-S-Brown/ttools: A suite of personal tools for implementing kick-ass Data Science in R

Description

Calculates the change in value of a variable over time - typically a baseline value. Defaults references are to a common CDISC complient data structure.

Usage

cfb(data, var, groupvar = USUBJID, timevar = VISIT, bltime = "Baseline",
  reftime = "Week 2")

Arguments

data	Dataset
var	Variable of Interest
groupvar	Variable to compute change within
timevar	Variable that records timepoint of measurement
bltime	Value of the baseline time
reftime	Value of the reference time

Examples

cfb(data = data, var = AVAL, groupvar = USUBJID,
timevar = VISIT)

T-S-Brown/ttools documentation built on May 18, 2019, 8:08 p.m.