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
- Necklaces are not defined in the docstring
PartitionsGreatestEQ, PartitionsGreatestLE, PartitionsInBox are redundant with Partitions
- For the following comments, let p be a partition:
- p.arm_lengths() should be called.p_arm_length_tableau()
- p.arm_legs_coeff() is not explained
- p.associated() is an alias for p.conjugate(). Is it necessary?
- p.atom() is not defined
- p.boxes() would be better called p.cells()
- An example should be given for the q,t-analog of p.centralizer_size()