@bencevans/kalman-filter/dist/test.js

Kalman Filter

"use strict";
exports.__esModule = true;
var test = require("tape");
var _1 = require(".");
test("single run", function (t) {
    var filter = new _1["default"]({
        initialEstimate: 0,
        initialErrorInEstimate: 1
    });
    var _a = filter.update({
        measurement: 20,
        errorInMeasurement: 0
    }), estimate = _a[0], errorInEstimate = _a[1];
    t.equal(estimate, 20);
    t.equal(errorInEstimate, 0);
    t.end();
});
test("multi run", function (t) {
    var _a, _b, _c;
    var filter = new _1["default"]({
        initialEstimate: 68,
        initialErrorInEstimate: 2
    });
    var _d = filter.update({
        measurement: 75,
        errorInMeasurement: 4
    }), estimate = _d[0], errorInEstimate = _d[1];
    t.equal(estimate.toFixed(2), "70.33");
    t.equal(errorInEstimate.toFixed(2), "1.33");
    _a = filter.update({
        measurement: 71,
        errorInMeasurement: 4
    }), estimate = _a[0], errorInEstimate = _a[1];
    t.equal(estimate.toFixed(2), "70.50");
    t.equal(errorInEstimate.toFixed(2), "1.00");
    _b = filter.update({
        measurement: 70,
        errorInMeasurement: 4
    }), estimate = _b[0], errorInEstimate = _b[1];
    t.equal(estimate.toFixed(2), "70.40");
    t.equal(errorInEstimate.toFixed(2), "0.80");
    _c = filter.update({
        measurement: 74,
        errorInMeasurement: 4
    }), estimate = _c[0], errorInEstimate = _c[1];
    t.equal(estimate.toFixed(2), "71.00");
    t.equal(errorInEstimate.toFixed(2), "0.67");
    t.end();
});
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