import assert from "assert";
import BayesianChangePoint, { BreakPoint } from "bayesian-changepoint";
const breakpointVerifier = (
next: BreakPoint<number>,
prev: BreakPoint<number>
): boolean => {
if (Math.abs(next.data - prev.data) >= 5) {
return true;
}
return false;
};
const values = (breakPoints: BreakPoint<number>[]): number[] => {
return breakPoints.map(breakPoint => breakPoint.data);
};
const indicies = (breakPoints: BreakPoint<number>[]): number[] => {
return breakPoints.map(breakPoint => breakPoint.index);
};
const detection = new BayesianChangePoint<number>({
breakpointVerifier
});
detection.exec([10, 10, 10, 10, 5000, 5000, 5000, 5000, 30, 30, 30, 30, 30]);
assert.deepEqual(values(detection.breakPoints()), [5000, 30]);
assert.deepEqual(indicies(detection.breakPoints()), [4, 8]);
