Total impact per factor at every year from a sequential decomposition

Sums the step attributions of a shapley_decompose() run across decomposition steps: the total impact of factor i at year T is \(\sum_{y \le T} \phi_i^{(y)}(T)\), where \(\phi_i^{(y)}(T)\) is the Shapley value at year T of the year-y policy (extended_decomp). Summed over factors this telescopes to (observed) - (all policies off from the first decomp year) at every T, so it is only meaningful when decomp_years is contiguous.

Usage

sequential_totals(result)

Arguments

result

The list returned by shapley_decompose() with extended = TRUE.

Value

data.table with one row per group x year x measure and one column per factor.

See also

shapley_decompose, whose examples call this function.