Function findBound

lib/histogram.js:221–229

(upperBounds, value)

}

function findBound(upperBounds, value) {
	for (let i = 0; i < upperBounds.length; i++) {
		const bound = upperBounds[i];
		if (value <= bound) {
			return bound;
		}
	}
	return -1;
}

function observe(labels) {
	return value => {