ZeroData {CoDaLoMic} | R Documentation |
Zero replacement
Description
In this function the zeros are removed or replaced using functions of "zCompositions" package that can be used with longitudinal data (because they do not use the information of other rows to make the replacement).
Usage
ZeroData(DaTa, method = "multKM", seed = NULL)
Arguments
DaTa |
data.frame. The first column contains the time point information (natural numbers 1,2,3...). The rest of the columns contain the relative abundance of each bacteria at the different time points. The values of each column must sum 1. |
method |
Character.
|
seed |
Number. Set a seed. Default |
Value
The dataset without zeros.
References
Palarea-Albaladejo J. and Martín-Fernandez JA. zCompositions – R package for multivariate imputation of left-censored data under a compositional approach. Chemometrics and Intelligent Laboratory Systems 2015; 143: 85-96.
Examples
set.seed(2)
dat=gtools::rdirichlet(6,c(1,2,3,1,2,3))
dat2=dat
dat2[2,1]=0
dat2[2,2]=dat[2,1]+dat[2,2]
dat2[4,3]=0
dat2[4,4]=dat[4,3]+dat[4,4]
X <- cbind( c(1:6) ,dat2)
Final=ZeroData(X,"multKM",1)
Final2=ZeroData(X,"multRepl",1)