Class: Shelter

WebR.Shelter

WebR shelters provide fine-grained control over the lifetime of R objects.

Table of contents

Properties

• RCall
• RCharacter
• RComplex
• RDataFrame
• RDouble
• REnvironment
• RInteger
• RList
• RLogical
• RObject
• RPairlist
• RRaw
• RString
• RSymbol

Methods

• captureR
• destroy
• evalR
• purge
• size

Properties

RCall

• RCall: ProxyConstructor<typeof RCall, RCall>

Defined in

webR/webr-main.ts:518

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RCharacter

• RCharacter: ProxyConstructor<typeof RCharacter, RCharacter>

Defined in

webR/webr-main.ts:509

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RComplex

• RComplex: ProxyConstructor<typeof RComplex, RComplex>

Defined in

webR/webr-main.ts:510

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RDataFrame

• RDataFrame: ProxyConstructor<typeof RDataFrame, RDataFrame>

Defined in

webR/webr-main.ts:513

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RDouble

• RDouble: ProxyConstructor<typeof RDouble, RDouble>

Defined in

webR/webr-main.ts:508

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REnvironment

• REnvironment: ProxyConstructor<typeof REnvironment, REnvironment>

Defined in

webR/webr-main.ts:515

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RInteger

• RInteger: ProxyConstructor<typeof RInteger, RInteger>

Defined in

webR/webr-main.ts:507

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RList

• RList: ProxyConstructor<typeof RList, RList>

Defined in

webR/webr-main.ts:512

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RLogical

• RLogical: ProxyConstructor<typeof RLogical, RLogical>

Defined in

webR/webr-main.ts:506

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RObject

• RObject: ProxyConstructor<typeof RObject, RObject>

Defined in

webR/webr-main.ts:505

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RPairlist

• RPairlist: ProxyConstructor<typeof RPairlist, RPairlist>

Defined in

webR/webr-main.ts:514

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RRaw

• RRaw: ProxyConstructor<typeof RRaw, RRaw>

Defined in

webR/webr-main.ts:511

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RString

• RString: ProxyConstructor<typeof RString, RString>

Defined in

webR/webr-main.ts:517

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RSymbol

• RSymbol: ProxyConstructor<typeof RSymbol, RSymbol>

Defined in

webR/webr-main.ts:516

Methods

captureR

▸ captureR(code, options?): Promise<{ images: ImageBitmap[] ; output: { data: any ; type: string }[] ; result: RObject }>

Evaluate the given R code, capturing output.

Stream outputs and conditions raised during execution are captured and returned as part of the output of this function. Returned R objects are protected by the shelter.

Parameters

Name	Type	Description
code	string	The R code to evaluate.
options?	EvalROptions	Options for the execution environment.

Returns

Promise<{ images: ImageBitmap[] ; output: { data: any ; type: string }[] ; result: RObject }>

An object containing the result of the computation, an array of output, and an array of captured plots.

Defined in

webR/webr-main.ts:618

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destroy

▸ destroy(x): Promise<void>

Parameters

Name	Type
x	RObject

Returns

Promise<void>

Defined in

webR/webr-main.ts:561

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evalR

▸ evalR(code, options?): Promise<RObject>

Evaluate the given R code.

Stream outputs and any conditions raised during execution are written to the JavaScript console. The returned R object is protected by the shelter.

Parameters

Name	Type	Description
code	string	The R code to evaluate.
options?	EvalROptions	Options for the execution environment.

Returns

Promise<RObject>

The result of the computation.

Defined in

webR/webr-main.ts:587

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purge

▸ purge(): Promise<void>

Returns

Promise<void>

Defined in

webR/webr-main.ts:553

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size

▸ size(): Promise<number>

Returns

Promise<number>

Defined in

webR/webr-main.ts:569