refactor visual-insights

[ObservedObserver]

No description provided.

[todo]

delete this file, fieldsAnalysis is an old api.

Rath/packages/visual-insights/src/fieldAnalysis.ts

Lines 2 to 6 in 4138df1

	* todo: delete this file, fieldsAnalysis is an old api.
	*/
	import { DataSource, Field, FieldImpurity } from './commonTypes'
	import {

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This comment was generated by todo based on a todo comment in 4138df1 in #17. cc @Kanaries.

[todo]

delete kruskal with limit size, use largest size to limit it(uncontrolled group number but better), need discuss.

Rath/packages/visual-insights/src/ml/cluster/kruskal.ts

Lines 84 to 87 in 4138df1

	// todo: delete kruskal with limit size, use largest size to limit it(uncontrolled group number but better), need discuss.
	/**
	*
	* @param matrix

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This comment was generated by todo based on a todo comment in 4138df1 in #17. cc @Kanaries.

[todo]

(P1):

Rath/packages/visual-insights/src/specification.ts

Lines 96 to 99 in 4138df1

	// todo (P1):
	// don't use dimScores: FieldImpurity.
	// it's a structure with redundency design.
	function specification (dimScores: FieldImpurity[], aggData: DataSource, dimensions: string[], measures: string[]): View {

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This comment was generated by todo based on a todo comment in 4138df1 in #17. cc @Kanaries.