FRONTEND_MVC/modules/manager/controllers/StatsController.php

<?php
namespace manager\controllers;

use  manager\models\News;
use Yii;


class StatsController extends BaseController
{
    public function actionIndex()
    {
		$model = new News();
        return $this->render('index', ['model' => $model]);
    }

// месяц
    public function actionAuthors()
    {
		$model = new News();
        return $this->render('authors', ['model' => $model]);
    }

// по дням
    public function actionAuthorsd()
    {
		$model = new News();
        return $this->render('authorsd', ['model' => $model]);
    }

}