import { Field, FieldCalcs, FieldType } from '../types/dataFrame';
import { Registry, RegistryItem } from '../utils/Registry';
export declare enum ReducerID {
    sum = "sum",
    max = "max",
    min = "min",
    logmin = "logmin",
    mean = "mean",
    variance = "variance",
    stdDev = "stdDev",
    last = "last",
    median = "median",
    first = "first",
    count = "count",
    countAll = "countAll",
    range = "range",
    diff = "diff",
    diffperc = "diffperc",
    delta = "delta",
    step = "step",
    firstNotNull = "firstNotNull",
    lastNotNull = "lastNotNull",
    changeCount = "changeCount",
    distinctCount = "distinctCount",
    allIsZero = "allIsZero",
    allIsNull = "allIsNull",
    allValues = "allValues",
    uniqueValues = "uniqueValues",
    p1 = "p1",
    p2 = "p2",
    p3 = "p3",
    p4 = "p4",
    p5 = "p5",
    p6 = "p6",
    p7 = "p7",
    p8 = "p8",
    p9 = "p9",
    p10 = "p10",
    p11 = "p11",
    p12 = "p12",
    p13 = "p13",
    p14 = "p14",
    p15 = "p15",
    p16 = "p16",
    p17 = "p17",
    p18 = "p18",
    p19 = "p19",
    p20 = "p20",
    p21 = "p21",
    p22 = "p22",
    p23 = "p23",
    p24 = "p24",
    p25 = "p25",
    p26 = "p26",
    p27 = "p27",
    p28 = "p28",
    p29 = "p29",
    p30 = "p30",
    p31 = "p31",
    p32 = "p32",
    p33 = "p33",
    p34 = "p34",
    p35 = "p35",
    p36 = "p36",
    p37 = "p37",
    p38 = "p38",
    p39 = "p39",
    p40 = "p40",
    p41 = "p41",
    p42 = "p42",
    p43 = "p43",
    p44 = "p44",
    p45 = "p45",
    p46 = "p46",
    p47 = "p47",
    p48 = "p48",
    p49 = "p49",
    p50 = "p50",
    p51 = "p51",
    p52 = "p52",
    p53 = "p53",
    p54 = "p54",
    p55 = "p55",
    p56 = "p56",
    p57 = "p57",
    p58 = "p58",
    p59 = "p59",
    p60 = "p60",
    p61 = "p61",
    p62 = "p62",
    p63 = "p63",
    p64 = "p64",
    p65 = "p65",
    p66 = "p66",
    p67 = "p67",
    p68 = "p68",
    p69 = "p69",
    p70 = "p70",
    p71 = "p71",
    p72 = "p72",
    p73 = "p73",
    p74 = "p74",
    p75 = "p75",
    p76 = "p76",
    p77 = "p77",
    p78 = "p78",
    p79 = "p79",
    p80 = "p80",
    p81 = "p81",
    p82 = "p82",
    p83 = "p83",
    p84 = "p84",
    p85 = "p85",
    p86 = "p86",
    p87 = "p87",
    p88 = "p88",
    p89 = "p89",
    p90 = "p90",
    p91 = "p91",
    p92 = "p92",
    p93 = "p93",
    p94 = "p94",
    p95 = "p95",
    p96 = "p96",
    p97 = "p97",
    p98 = "p98",
    p99 = "p99"
}
export declare function getFieldTypeForReducer(id: ReducerID, fallback: FieldType): FieldType;
export declare function isReducerID(id: string): id is ReducerID;
type FieldReducer = (field: Field, ignoreNulls: boolean, nullAsZero: boolean) => FieldCalcs;
export interface FieldReducerInfo extends RegistryItem {
    emptyInputResult?: unknown;
    standard: boolean;
    preservesUnits: boolean;
    reduce?: FieldReducer;
}
interface ReduceFieldOptions {
    field: Field;
    reducers: string[];
}
/**
 * @returns an object with a key for each selected stat
 * NOTE: This will also modify the 'field.state' object,
 * leaving values in a cache until cleared.
 */
export declare function reduceField(options: ReduceFieldOptions): FieldCalcs;
export declare const fieldReducers: Registry<FieldReducerInfo>;
export declare const defaultCalcs: FieldCalcs;
export declare function doStandardCalcs(field: Field, ignoreNulls: boolean, nullAsZero: boolean): FieldCalcs;
export {};