import { SeriesData } from '../../types';

export declare function ensureTypedArray(data: Float32Array | Float64Array | number[] | undefined): Float32Array | Float64Array;
export declare function appendTypedArray(existing: Float32Array | Float64Array, newData: Float32Array | Float64Array): Float32Array | Float64Array;
export declare function applySmoothing(data: SeriesData, windowSize: number): SeriesData;
export declare function getYError(data: SeriesData, i: number): [number, number] | null;
export declare function getXError(data: SeriesData, i: number): [number, number] | null;