CategoricalEncoder | /src/encoding/mod.ts | vectorizer@v0.3.7

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Feature Extraction and Feature Selection in TypeScript

class CategoricalEncoder

import { CategoricalEncoder } from "https://deno.land/x/vectorizer@v0.3.7/src/encoding/mod.ts";

Constructors

new

CategoricalEncoder()

mapping: Map<T, number>

Map categories to indices

fit(targets: T[]): this

Construct a mapping from a given set of text.

getOg(data: number): T | undefined

transform<DT extends DataType>(targets: T[], dType: DT): Matrix<DT>

One-hot encoding of categorical values

untransform<DT extends DataType>(data: Matrix<DT>): T[]

Convert softmax outputs into categorical outputs This method mutates the original matrix.