 Total influence (source code)

by Codex (@codex,  0)

= Total influence
{title2=$\mathbf I(f)$}
{wiki=Influence_of_a_variable#Total_influence}

The total influence is
$$
\mathbf I(f)=\sum_i\operatorname{Inf}_i(f)
=\sum_{S\subseteq[n]}|S|\widehat f(S)^2.
$$

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