LongToWide: Function to transpose the data from long to wide format

In tvmediation: Time Varying Mediation Analysis

Function to transpose the data from long to wide format

Description

Transposing a dataset with repeated measurements/responses for each subject from longitudinal to wide format.

Usage

LongToWide(subject.id, time.sequence, outcome, verbose = FALSE)

Arguments

subject.id	a column of subject identifiers
time.sequence	a column of time points
outcome	a column to be transposed
verbose	TRUE or FALSE (default = FALSE) prints output to screen (OPTIONAL INPUT)

Details

If data is not sorted by subject.id, a warning message will appear. The function will then sort the data by subject.id. It is recommended that the user sorts the data prior to using this function.

Value

mat.wide

a matrix in wide format, in which each column is the outcome for each subject and each row is the time sequence

Examples

# CREATING A TRANSPOSED MATRIX FOR MEDIATOR `WantToSmokeLst15min`
data(smoker)
mat.wide <- LongToWide(smoker$SubjectID,
                       smoker$timeseq,
                       smoker$WantToSmokeLst15min)

tvmediation documentation built on May 25, 2022, 9:05 a.m.