formatmatrix: Transform a matrix in 3 columns

In AGHmatrix: Relationship Matrices for Diploid and Autopolyploid Species

Transform a matrix in 3 columns

Description

Given any square matrix transform it in a 3 columns way (row, column, value) mainly to be used in outsourcing data processing (as ASREML-standalone)

Usage

formatmatrix(
  data = NULL,
  save = TRUE,
  return = FALSE,
  name = deparse(substitute(data)),
  round.by = 12,
  exclude.0 = TRUE
)

Arguments

data	matrix (nxn).
save	if TRUE save the output in a file. Default=TRUE.
return	if TRUE return the output in a object. Default=FALSE.
name	name of the csv file to be saved. Default=data name.
round.by	select the number of digits after 0 you want in your data. Default = 12
exclude.0	if TRUE, remove all lines equal to zero (ASREML option). Default = TRUE

Value

a object or a csv file with a table with 3 columns representing the matrix.

Author(s)

Rodrigo R Amadeu, [e-mail]

Examples

#Example with random matrix
data<-matrix(c(1,0.1,0,0.1,1,0,0,0,1.1),3)
formatmatrix(data=data,save=FALSE,return=TRUE,exclude.0=TRUE)

#Example with pedigree matrix
#Reading the example data
data(ped.mrode)
#Making Relationship Matrix
Amrode<-Amatrix(ped.mrode)
#Inverting the Matrix
Amrode.inv<-solve(Amrode)
#Making the 3 columns format
Amrode.inv.ASREML<-formatmatrix(Amrode,save=FALSE,return=TRUE,exclude.0=TRUE)
#Printing it
Amrode.inv.ASREML 

AGHmatrix documentation built on Oct. 4, 2023, 1:07 a.m.