Built matrix of interval logistic costs for held-out means. One indexed.
const_costs_logistic(y, w, min_seg, indices)
NumericVector, 0/1 values to group in order (should be in interval [0,1]).
NumericVector, weights (should be positive).
positive integer, minimum segment size (>=1).
IntegerVector, order list of indices to pair.
xcosts NumericMatix, for j>=i xcosts(i,j) is the cost of partition element [i,...,j] (inclusive).
const_costs_logistic(c(0.1, 0.1, 0.2, 0.2), c(1, 1, 1, 1), 1, 1:4)
#> [,1] [,2] [,3] [,4]
#> [1,] 1.797693e+308 -6.501659e-01 -1.216764e+00 -1.721453e+00
#> [2,] -6.501659e-01 1.797693e+308 -9.065784e-01 -1.380651e+00
#> [3,] -1.216764e+00 -9.065784e-01 1.797693e+308 -1.000805e+00
#> [4,] -1.721453e+00 -1.380651e+00 -1.000805e+00 1.797693e+308