B1MODImatrizP: Ridge regression matrix

In CoDaLoMic: Compositional Models to Longitudinal Microbiome Data

Ridge regression matrix

Description

Defining the part of the ridge regression matrix that carries the information of the bacteria especieII.

Usage

B1MODImatrizP(Tt, especieII, especie, E, EspecieMaxima)

Arguments

Tt	Number of time points available
especieII	Number. The number of the row in which the bacteria that we want to use is placed in the matrix especie.
especie	Matrix that contains at row i the bacterial taxa of bacteria i at all time points.
E	Number of bacteria available
EspecieMaxima	Row in which the bacteria chosen as reference is in especie. This is the bacteria that is going to be at the denominator of the balance and at the denominator of the alr transformation.

Value

Returns a matrix. The first column contain the number 1 repeated Tt times. The second column contains the alr transformation of the especieII in all time points. The third column contains the balance (whose numerator has all the bacteria except especieII and EspecieMaxima and the denominator contains the EspecieMaxima) in all time points.

Examples

Tt=2
especie1=cbind(c(0.5,0.3,0.2), c(0.1,0.3,0.6))
especieII=1
E=3
EspecieMaxima=3

B1MODImatrizP(Tt, especieII,especie1, E, EspecieMaxima)

CoDaLoMic documentation built on April 12, 2025, 2:18 a.m.