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#' Get M2
#' (M1+una clase extra con x33=c3=r3=1)+0.5: solo cuando M1=2x2.
#' @noRd
getM2 = function(M1){
# M2 = matrix(0,3,3)
# M2[1:2,1:2] = M1
# M2
M2 = rbind(cbind(M1,0),0)
M2[3,3] = 1
# Atributos
attribute_list = attributes(M1)
attribute_list$dim = c(3,3)
dimnams = c(attribute_list$dimnames[[1]],'extCls')
attribute_list$dimnames[[1]] = dimnams
attribute_list$dimnames[[2]] = dimnams
attributes(M2) = attribute_list
M2 = M2+0.5
class(M2) <- c('table', 'M2')
return(M2)
}
#' M3 = M1+0.5.
#' @noRd
getM3 = function(M1){
M3 = M1+0.5
class(M3) <- c('table', 'M3')
return(M3)
}
#' M4 = M1+1: solo cuando M1=2x2.
#' @noRd
getM4 = function(M1){
M4 = M1+1
class(M4) <- c('table', 'M4')
return(M4)
}
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