vega-lite
Version:
Vega-Lite is a concise high-level language for interactive visualization.
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TypeScript
import { Transforms as VgTransform } from 'vega';
import { FieldDef, FieldName } from '../../channeldef.js';
import { SortFields } from '../../sort.js';
import { StackOffset } from '../../stack.js';
import { StackTransform } from '../../transform.js';
import { UnitModel } from '../unit.js';
import { DataFlowNode } from './dataflow.js';
export interface StackComponent {
/**
* Faceted field.
*/
facetby: string[];
dimensionFieldDefs: FieldDef<string>[];
/**
* Stack measure's field. Used in makeFromEncoding.
*/
stackField: string;
/**
* Level of detail fields for each level in the stacked charts such as color or detail.
* Used in makeFromEncoding.
*/
stackby?: string[];
/**
* Field that determines order of levels in the stacked charts.
* Used in both but optional in transform.
*/
sort: SortFields;
/** Mode for stacking marks.
*/
offset: StackOffset;
/**
* Whether to impute the data before stacking. Used only in makeFromEncoding.
*/
impute?: boolean;
/**
* The data fields to group by.
*/
groupby?: FieldName[];
/**
* Output field names of each stack field.
*/
as: [FieldName, FieldName];
}
export declare class StackNode extends DataFlowNode {
private _stack;
clone(): StackNode;
constructor(parent: DataFlowNode, stack: StackComponent);
static makeFromTransform(parent: DataFlowNode, stackTransform: StackTransform): StackNode;
static makeFromEncoding(parent: DataFlowNode, model: UnitModel): StackNode;
get stack(): StackComponent;
addDimensions(fields: string[]): void;
dependentFields(): Set<string>;
producedFields(): Set<string>;
hash(): string;
private getGroupbyFields;
assemble(): VgTransform[];
}
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