> I am in need of browsing through all the statistics on permutations and 
> derangements, and wanted to use combinatorial_statistics_in_class, but I 
> can't find it anymore...
> What should I be using?

Hi Martin --

sage: from sage.combinat.combinatorial_map import combinatorial_maps_in_class
sage: combinatorial_maps_in_class(type(Permutation([])))
[Combinatorial map: complement,
 Combinatorial map: permutation poset,
 Combinatorial map: Binary search tree (left to right),
 Combinatorial map: major-index to inversion-number bijection,
 Combinatorial map: Robinson-Schensted tableau shape,
 Combinatorial map: inverse,
 Combinatorial map: Robinson-Schensted recording tableau,
 Combinatorial map: foata_bijection,
 Combinatorial map: descent composition,
 Combinatorial map: Robinson-Schensted insertion tableau,
 Combinatorial map: to alternating sign matrix,
 Combinatorial map: Increasing tree,
 Combinatorial map: Simion-Schmidt map,
 Combinatorial map: reverse,
 Combinatorial map: inversion-number to major-index bijection]

Let me add that I was thinking of opening a ticket to remove
combinatorial maps from Sage again (in the medium time future) simply
because the negative comments about it were louder (and I am currently
not in the position to be able to spend much time on stuff I don't
need for my research). So if you have some use cases for combinatorial
maps, please write about it so such cases are also visible.

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