Learning your baseline
{have} of {of} nights
{Array.from({ length: of }, (_, i) => (
))}
{left === 1 ? "1 more night" : `${left} more nights`} before {inSentence(metric)} is read against your usual
);
}
export { BaselineMeter, type BaselineMeterProps };
```
### lib/notchset/standing.ts
```tsx
// Notchset baseline-meter 2.0.0 · https://notchset.dev/changelog
/*
* Standing: where a value sits against a named range, as one calculation every health piece reads (the range bar,
* the results strip, a result list, a metric card), so a value can never read "High" in one place and "In range" in
* another. A range always says whose it is: the lab's printed reference range, an optimal range with its source, or
* your own baseline from your last nights. Plain functions, no React.
*/
/** Whose range it is. Never a bare band: the source is always said. */
export type RangeKind = "lab" | "optimal" | "baseline";
/** A range, open at either end ("< 100" has no low). Values are in the unit the value is shown in. */
export type ValueRange = {
low?: number | undefined;
high?: number | undefined;
kind: RangeKind;
/** who set it: "Northside Lab", "Endocrine Society 2024", "Your last 14 nights" */
source: string;
};
/** Where a value stands: below, inside or above its range; unknown when there is no range or no value. */
export type Standing = "low" | "in" | "high" | "unknown";
/** A value's standing against a range: inclusive at both limits, as labs print them ("30–100" includes 30). */
export function standingOf(value: number | null | undefined, range: Pick