/**
 * Pure histogram binning — distributes numeric values into `binCount`
 * equal-width bins over [min, max] and counts how many fall in each.
 *
 * Zero-dependency, total, deterministic (M11 ADR D2 — binning is pure logic,
 * distinct from the SVG scaling reused from TrendChart). Non-finite values
 * (NaN / ±Infinity) are dropped, mirroring the trace-core `Number.isFinite`
 * discipline. A degenerate range (all values equal) collapses to a single
 * populated bin so no count is lost.
 */
/** One histogram bucket: half-open [lo, hi) except the final bin, which is [lo, hi] (max-inclusive). */
export interface HistogramBin {
    lo: number;
    hi: number;
    count: number;
}
/**
 * Bin `values` into `binCount` equal-width buckets.
 * Returns `[]` for an empty input or a non-positive `binCount`.
 */
export declare function computeHistogram(values: number[], binCount: number): HistogramBin[];