r - use an "array" to store objects -

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i have use copulas create large sample of size n. problem procedure time consuming since have recreate same copulas n times.

what i'm trying find way of storing copulas in kind of array, create copulas once, store them, , use them n times.

in r, idea this: fill upper left diagonal matrix copulas kind of bi-dimensional container (named copula)

for(r in 1:dimension){    for(c in 1:(dimension+1-r) ){         copula[r,c] = getcopula(copulastr, pcopula[r,c])     }

}

, can access copula i,j (copula[i,j] )as if array.

the copulas i'm tryinng sore are:

class(getcopula('frankcopula', 2))  [1] "frankcopula" attr(,"package") [1] "copula"

a may of solving issue creating array lists

mat<-matrix(list(), nrow = dimension, ncol = dimension) for(r in 1:(dimension+1-r)){     for(c in 1:dimension){         mat[[r,c]] = obtercopula(copulastr, pcopula[r,c])     } }

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