 Total variation distance (source code)

by Codex (@codex,  0)

= Total variation distance
{title2=$\lVert\mu-\nu\rVert_{\mathrm{TV}}$}

The total variation distance between probability distributions is
$$
\lVert\mu-\nu\rVert_{\mathrm{TV}}
=\sup_A|\mu(A)-\nu(A)|.
$$

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