Weirdness

• sage.combinat.word is not imported by default
• word.symmetric_group_action_on_values does not naturally belong in word
• word.standard should be called word.standardization
• word.charge returns the cocharge

• CombinatorialAlgebra has no useful documentation

• CombinatorialClass has no documentation

• It would be nice for CombinatorialObject to have a method 'indices' which returns a list of the index of *every* occurrence of x

• Compositions has no option for allowing '0' parts (which are often useful) (IntegerVectors does this. There should be a pointer.)

• Composition.conjugate() is not explained
• Composition.descents() is not explained
• Composition.major_index() doc-string says it is the sum of the descents. This is not true for the given example.
• Composition.refinement() is not explained

• SignedCompositions has no corresponding class SignedComposition

• DyckWords? does not define Dyck words

• DyckWord.b_statistic() is not explained

• DyckWord.height() is not explained

• DyckWord.peaks() is not explained

• DyckWord.to_noncrossing_partition() could use a better reference

• DyckWord.to_tableau is not explained

• DyckWord.to_* for * in {ordered_tree, triangulation} is not implemented. Warning: Implementing bijections between Catalan objects can be a never-ending task.

• IntegerVectors has no corresponding class IntegerVector (or Word, etc.)

• WeightedIntegerVectors has no corresponding class WeightedIntegerVector (or IntegerVector, or Word, etc.)

• LyndonWords has no corresponding class LyndonWord (or Word, etc.)

• LyndonWords are not defined in the docstring

• MultichooseNK has no useful documentation
• The name MultichooseNK does not compare well with Combinations, though they do very similar things