How to get analytics reports programmatically in SharePoint 2013?

Question

In SharePoint 2010 it was possible to obtain data from web analytics programmatically using Microsoft.Office.Server.WebAnalytics.Reporting.AnalyticsReportFunction class.
How can you get search reports programmatically in SharePoint 2013? Are there new assemblies or classes that can be used to obtain them?
In my scenario, i am mostly interested in the most searched terms at web application or service application level. 
In SharePoint 2013 the Web Analytics Service Application was merged into the Search Service Application. It seems now that the old assemblies used for this (Microsoft.Office.Server.WebAnalytics.dll
and Microsoft.Office.Server.WebAnalytics.UI.dll) are not available any more.
They are available in the user interface as Excel reports, in CA->Application Management->Manage Service Applications->Search Service Application->Usage Reports , but I am interested to obtain these reports programmatically.
Is this scenario still supported in SP 2013?

Answer 1

try this 
using (SPSite site = new SPSite(MainBUPageUrl))//open root
                        using (SPWeb web = site.OpenWeb())
                            AnalyticsReportFunction AnalyticReport = new AnalyticsReportFunction(); //create object of analyticsReport
                            Thread.CurrentPrincipal = new WindowsPrincipal(WindowsIdentity.GetCurrent());//this is used only
in timer job if not used then GetWebAnalyticsReportData will not work
                            object[,] result = null;
                                web.AllowUnsafeUpdates = true;
                               result = AnalyticReport.GetWebAnalyticsReportData(SiteCollurl, "2", ReportType.TopDestinationForSiteReport.ToString(),
DateTime.Today.AddDays(-3.0), DateTime.Today); //this gives top visitor for provided site collection by providing time duration(start and end date),report type and url
                                SPList list = web.Lists.TryGetList("AppreciationsList");//list
                                for (int counter = 0; counter < 10; counter++) //show top ten pages
                                    Item = list.AddItem();
                                    s_count = result[rcount, 1].ToString(); //code
to get top vistor usage count
                                    Username = result[rcount++, 0].ToString();//get
top vistor name
                                    user = null;
                                    try
                                        user = web.EnsureUser(Username);//check
user available?
                                    catch (Exception)
                                        counter--;
                                        continue;
                                    IfExist = checkUserExistence(user);//call the
function   // IfExist = false; //this flag is used to check existence of user in insightMember group
                                    if (IfExist == true)//if user is not in the insight2
group member list
                                        Item["Appreciated Person"]
= user; 
                                        Item["Title"] = s_count;
                                        Item.Update();
                                    else //if user is in the insight2 group member
list
                                        counter--;
                                        continue;
                              web.AllowUnsafeUpdates = false;