import type { GetSplitsReturnType } from './getSplits.js';
export interface MappedSplit {
    data: number[];
    mean: number;
    index: number;
    source: number;
}
export interface MatchedSplit {
    split: MappedSplit;
    otherSplitMatches: {
        split: MappedSplit;
        distanceFactor: number;
        sizeRatio: number;
    }[];
}
export interface MatchModalitiesConfig {
    rawSplits1: readonly number[][];
    rawSplits2: readonly number[][];
    meanDistanceWeight?: number;
    sizeRatioWeight?: number;
    /**
     * If the size of the split is within this ratio of the other split, prioritize the match
     * Otherwise, all splits that do not have the correct ratio will be matched in the 2nd pass
     */
    prioritizeSizeRatioAbove?: number;
}
export declare const HIGH_QUALITY_SAMPLE_COUNT = 100;
export declare const MINIMUM_SIZE_RATIO_ABOVE = 0.5;
export declare const getPrioritizationSizeRatio: (sampleCount: number, highQualitySampleCount?: number) => number;
/**
 * Used to match the modalities of two datasets by their means.
 * The function will prioritize modalities with similar number of samples, and will try to match them by their means.
 * You may adjust how the modalities are prioritized using the following parameters:
 *
 * `meanDistanceWeight` - the weight of the mean distance in the comparison
 * `sizeRatioWeight` - the weight of the sample size ratio in the comparison
 * `prioritizeSizeRatioAbove` - prioritize modalities with a sample size ratio above this value
 */
export declare function matchModalities({ rawSplits1, rawSplits2, meanDistanceWeight, sizeRatioWeight, prioritizeSizeRatioAbove, }: MatchModalitiesConfig): (readonly [MappedSplit, MappedSplit | undefined] | readonly [MappedSplit | undefined, MappedSplit])[];
export declare const getModalityData: (input: readonly [MappedSplit | undefined, MappedSplit] | readonly [MappedSplit, MappedSplit | undefined]) => [number[] | undefined, number[] | undefined];
export declare function getMatchedUsableModalities({ isUsableModality, ...config }: MatchModalitiesConfig & {
    isUsableModality: (split: [number[] | undefined, number[] | undefined]) => split is [number[], number[]];
}): {
    usableModalities: [number[], number[]][];
    discardedModalities: [number[] | undefined, number[] | undefined][];
};
export declare function getBestMatchingModality(split1: GetSplitsReturnType, split2: GetSplitsReturnType): {
    data1: number[];
    data2: number[];
    remaining1: number[];
    remaining2: number[];
};
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