BPBM_Matrix: Obtains the matrix of covariates of the BPBM

In CoDaLoMic: Compositional Models to Longitudinal Microbiome Data

Obtains the matrix of covariates of the BPBM

Description

This function writes the matrix of covariates of the BPBM.

Usage

BPBM_Matrix(rows.position, PB, Tt)

Arguments

rows.position	Vector. Vector with the number of the rows where the SPBal are in the matrix PB. We write first the row in which the balance with higher variance is placed, then the row in which the balance with second higher variance is placed...
PB	Matrix. Each line os the matrix PB contains the values of one principal balance at all time points.
Tt	Number of time points available.

Details

In an example with two SPBal and three time points, the covariates are written in the following order:

1	1	1
SPBal_{1,t-1}	SPBal_{1,t-2}	SPBal_{1,t-3}
SPBal_{2,t-1}	SPBal_{2,t-2}	SPBal_{2,t-3}

Value

Returns a matrix with the covariates of the model.

References

Creus-Martí, I., Moya, A., Santonja, F. J. (2022). Bayesian hierarchical compositional models for analysing longitudinal abundance data from microbiome studies. Complexity, 2022.

Examples

matt=matrix(c(1:12),3,4)
rows.position=c(2,3)
BPBM_Matrix(rows.position,matt,4)

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