Migrating from the legacy packages

The legacy packages OldYoungTableaux, MacdonaldPolynomials and ChromaticFunctions are frozen. Everything useful in them now lives in the supported packages (issue #51), which follow one set of conventions (CONVENTIONS.md). This page lists every public legacy name and its replacement. LegacyConversions converts legacy data:

Needs["LegacyConversions`"]   (* loads no legacy package *)
FromLegacyGTPattern[oldPattern]; FromLegacyYoungTableau[oldTableau];
FromLegacyAreaList[oldArea]; FromLegacyEdges[oldEdges, n]; FromLegacyIndex["Key", alpha];

Convention changes

Object	Legacy	Supported	Conversion
GT patterns	rows top to bottom (`OldYoungTableaux`)	rows bottom to top (`GTPatterns`)	`FromLegacyGTPattern` (reverse the rows)
Skew cells in tableaux	private `SKEW` symbol	`None` (`NewTableaux`)	`FromLegacyYoungTableau`
Area lists	end with 0 (`ChromaticFunctions`)	start with 0 (`CatalanObjects`, `UnicellularChromatics`)	`FromLegacyAreaList` (reverse); edges: `FromLegacyEdges` (v -> n + 1 - v)
Keys, t-keys, locks	reversed index (`MacdonaldPolynomials`)	standard index: κ_(0,1) = x1 + x2; locks as Assaf–Searles	`FromLegacyIndex["Key" \\| "TKey" \\| "Lock", alpha]` (reverse)
Atoms, t-atoms, Schubert, slides	standard	standard	none
`MacdonaldEPolynomial[alpha, x, q, t]`	basement n, …, 1	identity basement	legacy = new `MacdonaldEPolynomial[alpha, Range[n, 1, -1], x, q, t]`
Normalized characters	`ChNormalizedCharacter` signed	positive	legacy = (-1)^(\|mu\| - Length[mu]) `StanleyCharacterPolynomial[mu, p, q, d]`
Functions returning functions	e.g. `SchurPolynomial[lam, mu, n][x]`	expressions in `x[1], ..., x[n]`	see the tables
`GTPartition` values	symbols `Tiles`, `Snakes`, …	strings `"Tiles"`, `"Snakes"`, `"FreeTiles"`, `"ShadedTiles"`
`KostkaCoefficient[lam, mu, w]`	third argument a skew weight	third argument the Jack parameter	skew: `SkewKostkaCoefficient[lam, mu, w]`

Same name in a supported package

These names exist in the package shown, with the conventions above; the exceptions noted differ in meaning. When a legacy package is loaded too, use full names such as GTPatternsGTPatterns ([README.md`](https://github.com/PerAlexandersson/Mathematica-packages/blob/master/Legacy/README.md)).

OldYoungTableaux

CombinatoricTools: KostkaCoefficient (third argument differs, see above), MacdonaldPsi (different signature), MacdonaldPsiPrime, PartitionList (the legacy version drops empty pieces), PermutationOfType, SageForm, SetPartitionRefinementQ, ShapeUnion, SkewShapeQ, YoungLatticePaths
GTPatterns: BZPattern, BZPatterns, BZPlus, BoxCountMatrix, ContainingFaceDimension, EnableSkew, GTMonomial, GTPartition, GTPattern, GTPatternForm, GTPatternTikz, GTPatterns, GTPlus, GTSnakes, GTTiles, GogPatterns, KostkaRange, LatticePathForm, LatticePathTikz, MagogPatterns, ShapeTriplets, TilingMatrix, UpperBoundKostkaDegree, WeightRange
NewTableaux: HasOuterCornerQ, LineBreaks, UseArray, YoungTableau, YoungTableauForm
PermutationTools: PermutationType (defined differently in the legacy package; check uses)
PolynomialTools: HVector, SequenceToPolynomial (now with a degree bound)
ShiftedSymmetricFunctions: ShiftedJackJEvaluate, ShiftedJackJPolynomial, ShiftedJackPEvaluate, ShiftedJackPPolynomial

MacdonaldPolynomials

CombinatoricTools: ChargeWordDecompose, WordCharge
NewTableaux (fillings are SSAF[rows] objects): AtomFillings, ChargeToMajMap, KeyFillings, LascouxSchutzenberger (the legacy version can leave the filling set), RPPToAtom, SSAFCoInversions, SSAFColumnSets, SSAFCrystalString, SSAFCrystalWord, SSAFDn, SSAFInversions, SSAFKnownCharge, SSAFMajorIndex, SSAFMonomial, SSAFWeight, SSAFWeightNormalize, SSAFillings, SSYTToAtom, TAtomFillings
NonsymmetricPolynomials: AtomPolynomial, DividedDifference, KeyPolynomial (index reversed), LockPolynomial (index reversed), MacdonaldEPolynomial (basement, see above), SchubertPolynomial, ToAtomBasis, ToFundamentalSlideBasis, ToKeyBasis, ToLockBasis

ChromaticFunctions (area lists now start with 0)

CatalanObjects: AreaBounce, AreaListPlot, AreaToBounceShape, Labels
CombinatoricTools: StrictEdges, WeakEdges
GraphTools: GraphAcyclicOrientations, GraphOrientations (take a Graph or an edge list)
UnicellularChromatics: all other names, including GraphAreaLists, AreaConjugate, ValleyEdges, DiagramRookPlacements, OrientationPlot, PArrayPlot, UnitIntervalPlot, the chromatic symmetric and LLT functions, orientations and Gasharov tableaux.

Renamed or replaced

| Legacy | Supported replacement | |—|—| | OldYoungTableauxSchurPolynomial[lam, mu, n][x] | SymmetricFunctionToPolynomial[SchurSymbol[lam], x, n]; skew: SkewSchurSymmetric[{lam, mu}] | | MonomialSymmetricPolynomial[lam, n][x] | SymmetricFunctionToPolynomial[MonomialSymbol[lam], x, n] | | PowerSumPolynomial[lam, n][x] | SymmetricFunctionToPolynomial[PowerSumSymbol[lam], x, n] | | HallLittlewoodP[lam, n, x, t] | SymmetricFunctionToPolynomial[HallLittlewoodPSymmetric[lam, t], x, n] | | JackPPolynomial[lam, n, x, a], JackJPolynomial[…] | SymmetricFunctionToPolynomial[JackPSymmetric[lam, a], x, n], JackJSymmetric | | HookFactor[lam, a], HookPrimeFactor[lam, a], JackNorm[lam, a] | JackLowerHook[lam, a], JackUpperHook[lam, a], their product | | ChiCoefficient[lam, mu] | SnCharacter[lam, mu] | | DominatesQ | PartitionDominatesQ | | AddBoxToPartition[mu, top], RemoveBoxFromPartition[mu, bot] | PartitionAddBox[mu, top], PartitionRemoveBox[mu, bot] | | ToCycleForm | PartitionPartCount | | TrimPartition, NormalizePartitions | DeleteCases[lam, 0], PadRight | | FullPermutationCycles | PermutationAllCycles (PermutationTools) | | TableauShape, ToTableauShape | YoungTableauShape | | YoungTableauTeX, MatrixTeXForm | YTableauTeX[t, UseArray -> False], YTableauTeX[t, UseArray -> True] | | Tiles, Snakes, FreeTiles, ShadedTiles | the strings “Tiles”, ... as GTPartition values | | EhrhartPolynomial[…] (GT polytopes) | GTEhrhartPolynomial[lam, mu, w, k] | | ChNormalizedCharacter[mu, d][p, q] | (-1)^(Total[mu] - Length[mu]) StanleyCharacterPolynomial[mu, p, q, d]; also NormalizedCharacter[mu, lam] | | MacdonaldPolynomialsOperatorKeyPolynomial[alpha, x] | KeyPolynomial[Reverse[alpha], x] | | OperatorAtomPolynomial[alpha, x] | AtomPolynomial[alpha, x] | | OperatorKeyTPolynomial[alpha, x, t] | TKeyPolynomial[Reverse[alpha], x, t] | | AtomTPolynomial[alpha, x, t] | TAtomPolynomial[alpha, x, t] | | PiOperator, ThetaOperator, TPiOperator, TThetaOperator | DemazureOperator, DemazureAtomOperator, TDemazureOperator, TDemazureAtomOperator (same arguments) | | FundamentalSlide[alpha, x] | FundamentalSlidePolynomial[alpha, x] | | DualGrothendieckPolynomial[alpha, x] | DualGrothendieckPolynomial[Reverse[alpha], x] (NonsymmetricPolynomials; index reversed as for keys) | | IntegralFormFactor[alpha, q, t] MacdonaldEPolynomial[...] | IntegralMacdonaldE[alpha, x, q, t] | | SSAFRaising, SSAFLowering | CrystalEi, CrystalFi on SSAF objects | | ModifiedLascouxSchutzenberger | LascouxSchutzenberger | | SSYTLascouxSchutzenberger[t, i] | CrystalSi[t, i] | | QSymMonomial[alpha, n, x] | QuasiSymmetricFunctionToPolynomial[MonomialQSymbol[alpha], x, n] | | GesselFundamental[S, d, n, x] | QuasiSymmetricFunctionToPolynomial[FundamentalQSymbol[DescentSetToComposition[S, d]], x, n] | | QSymSchur[alpha, n, x] | QuasiSymmetricFunctionToPolynomial[QuasiSchurQSymmetric[alpha], x, n] | | QuasiSymmetricPowerSum, QuasiSymmetricPowerSum2 | PowerSumQSymbol, PowerSumAltQSymmetric (via QuasiSymmetricFunctionToPolynomial) | | ToGesselSubsetBasis[p, x, ff] | PolynomialToQuasiSymmetricFunction[p, x, FundamentalQSymbol] | | ToElementaryBasis, ToCompleteHomogeneousBasis, ToPowerSumBasisMacdonald | PolynomialToSymmetricFunction[p, x, ElementaryESymbol] (or CompleteHSymbol, PowerSumSymbol) | | CompositionIndexedBasisRule, PartitionIndexedBasisRule | the To...Basis functions of NonsymmetricPolynomials and PolynomialToSymmetricFunction | | MacdonaldHPolynomial, MacdonaldJPolynomial (symmetric) | MacdonaldHSymmetric (Haglund convention), MacdonaldJSymmetric | | ChromaticFunctionsAreaToEdges[area] | UnitIntervalEdges[FromLegacyAreaList[area]]` |

Not ported

Legacy	Reason
`ShiftedSchur[mu, d][p, q]`, `KNormalizedCharacter`, `JackPStructureConstant`, `JackJStructureConstant`, `LCoefficient`, `IndexedToFallingBasisRule`, `FerayN`	no stated contract that could be tested independently (`FerayN` is internal to `StanleyCharacterPolynomial`)
`KnopTableaux`, `TopValleyRepresentation`	empty or “TODO” usage strings
`UnittestPackage`	replaced by `Tests/RunTests.wls`
`IntegralFormNonSymmetricJack`	uses the legacy basement; use `IntegralMacdonaldE` and `NonsymmetricJackPolynomial`
`ElementaryPolynomial` (q-deformed e), `SkewMacdonaldE`, `ToMacdonaldEBasis`	not needed by the supported packages so far
`DualGrothendieckFillings`, `RPPColumnWeight`	filling internals of `DualGrothendieckPolynomial`
`LockFillings`, `KeyAsAtomFillings`, `KeyAsPBFs`, `MacdonaldEFillings`, `MacdonaldHFillings`, `MacdonaldJFillings`, `MacdonaldJMonomial`, `MacdonaldMonomial`, `GeneralTableauFillings`	filling internals; the polynomials are generated by operators
`WordDecompose`, `IsInversionTripletTypeAQ/BQ`, `KeyCompositionToPermutation`, `AtomCompositionToPermutation`	internals (`ChargeWordDecompose`, operator words)
`LascouxSchutzenbergerNormalizeWord`, `SSYTLascouxSchutzenbergerInvolution`, `SSYTWeightNormalize`	use `CrystalSi` and `SSAFWeightNormalize`
`QuasiSymmetricCompleteHomogeneous`	had no definition in the legacy package
`ColorPlot`, `DyckDiagramPlot`	use `OrientationPlot`, `UnitIntervalPlot`, `AreaListPlot`

If something you used is missing here or behaves differently, please open an issue.