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 # RACalculations

 Last update: 17.07.2025 

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### *class* RACalculations

Rocky api for particles calculations

**Methods:**

NameDescription[`CreateDivisionsTagging`](#generated.RACalculations.CreateDivisionsTagging)(selection)Create a Divisions Tagging calculator for the given particle-based selection process.[`CreateSelectionFlipCount`](#generated.RACalculations.CreateSelectionFlipCount)(selection)Create a flip count grid function for the given selection process[`CreateSelectionResidenceTime`](#generated.RACalculations.CreateSelectionResidenceTime)(selection)Create a residence time grid function for the given selection process[`CreateSelectionTagging`](#generated.RACalculations.CreateSelectionTagging)(selection)Deprecated: Use [`CreateTagging()`](#generated.RACalculations.CreateTagging) instead.[`CreateTagging`](#generated.RACalculations.CreateTagging)(selection)Create a Tagging calculator for the given particle-based selection process.[`GetDivisionsTagging`](#generated.RACalculations.GetDivisionsTagging)(name)Get the Divisions Tagging calculator with the given name.[`GetDivisionsTaggingNames`](#generated.RACalculations.GetDivisionsTaggingNames)()Get a list of the names of all Divisions Taggings in Particles Calculations.[`GetTagging`](#generated.RACalculations.GetTagging)(name)Get the Tagging calculator with the given name.[`GetTaggingNames`](#generated.RACalculations.GetTaggingNames)()Get a list of the names of all Taggings in Particles Calculations.<a id="generated.RACalculations.CreateDivisionsTagging"></a>

#### CreateDivisionsTagging(selection: RAGridProcessElementItem)

Create a Divisions Tagging calculator for the given particle-based selection process.

- **Parameters:****selection** – Must be a particle selection type.

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#### CreateSelectionFlipCount(selection: RAGridProcessElementItem)

Create a flip count grid function for the given selection process

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#### CreateSelectionResidenceTime(selection: rocky30.plugins.api.ra\_grid\_process\_element.RAGridProcessElementItem | str)

Create a residence time grid function for the given selection process

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#### CreateSelectionTagging(selection: RAGridProcessElementItem)

Deprecated: Use [`CreateTagging()`](#generated.RACalculations.CreateTagging) instead.

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#### CreateTagging(selection: RAGridProcessElementItem)

Create a Tagging calculator for the given particle-based selection process.

- **Parameters:****selection** – Must be a particle selection type.

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#### GetDivisionsTagging(name: str)

Get the Divisions Tagging calculator with the given name.

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#### GetDivisionsTaggingNames()

Get a list of the names of all Divisions Taggings in Particles Calculations.

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#### GetTagging(name: str)

Get the Tagging calculator with the given name.

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#### GetTaggingNames()

Get a list of the names of all Taggings in Particles Calculations.