reconstruct

services/rolling_window.ts

@@ -0,0 +1,30 @@
+import * as math from 'mathjs';
+import * as _ from 'lodash';
+
+export class RollingWindow {
+    private windows: number[][];
+
+    constructor(windows: number[][]) {
+        this.windows = windows;
+    }
+
+    mean(): number[] {
+        return this.windows.map(window => Number(math.mean(window)));
+    }
+
+    sum(): number[] {
+        return this.windows.map(window => _.sum(window));
+    }
+
+    min(): number[] {
+        return this.windows.map(window => Math.min(...window));
+    }
+
+    max(): number[] {
+        return this.windows.map(window => Math.max(...window));
+    }
+
+    toArray(): number[][] {
+        return this.windows;
+    }
+}