_samples = input.samples.length;

var accessors = {
    "ibs0": function (input, i, j) {
        return input.ibs[i * input.n_samples + j]
    },
    "shared_hets": function (input, i, j) {
        return input.ibs[j * input.n_samples + i]
    },
    "ibs2": function (input, i, j) {
        return input.n[j * input.n_samples + i]
    },
    "n": function (input, i, j) {
        return input.n[i * input.n_samples + j]
    },
    "shared_hom_alts": function (input, i, j) {
        return input.shared_hom_alts