aggregation

first at all, I´m aware that there were similiar asked questions, but none of the answers could solve my problem. Short look into my code: My Component.js looks like this routes: [ { pattern: "", //home page name: util.Constants.Tile, view: util.Constants.Tile, viewId: util.Constants.Tile, targetAggregation: "pages" //targetControl: "idAppControl" }, { pattern: "firstExample", name: util.Constants.FirstExample, view: util.Constants.FirstExample, viewId: util.Constants.FirstExample, targetAggregation: "pages", targetControl : "idAppControl", subroutes : [ { pattern: "firstExample", name: util

I have a scenario in analytics where I want to calculate least performing 20 outlets out of 1000+ outlets where performance = transactionCount/ VisitCount per month at an outlet. Mappings are, { "CustomerVisit": { "properties": { "outlet": { "type": "string", "index": "not_analyzed" }, "customerName": { "type": "string", "index": "not_analyzed" }, "visitMonth": { "type": "Date" }, "visit": { "type": "nested", "properties": { "visitStatus": { "type": "long" }, "transactionStatus": { "type": "long" }, "remarks": { "type": "string", "index": "not_analyzed" } } } } } } Now, What I want is

I have a mongo object with these fields: DateTime TimeStamp; float Value; How can I get the aggregation pipeline, in C#, with LINQ, to get the minimum, maximum and average of Value over a specific timestamp range? I have seen a few aggregation examples, but I don't quite get it. Having an example on a simple case like this would certainly (hopefully) make me understand it. You can use LINQ syntax which gets translated into Aggregation Framework's syntax. Assuming you have following Model class: public class Model { public DateTime Timestamp { get; set; } public float Value { get; set; } } you

Mongo DB's Aggregation pipeline has an "AddFields" stage that allows you to project new fields to the pipeline's output document without knowing what fields already existed. It seems this has not been included in the C# driver for Mongo DB (using version 2.7). Does anyone know if there are any alternatives to this? Maybe a flag on the "Project" stage? As discussed here Using $addFields in MongoDB Driver for C# you can build the aggregation stage yourself with a BsonDocument. To use the example from https://docs.mongodb.com/manual/reference/operator/aggregation/addFields/ { $addFields: {

I drives me crazy how many books contradicts themselves. Class A {} class B {void UseA(A a)} //some say this is an association, no reference is held but communication is possible Class A {} class B {A a;} //some say this is aggregration, a reference is held But many say that holding a reference is still just an association and for aggregation they use a list - IMHO this is the same, it it still a reference. I am very confused, I would like to understand the problem. E.g. here: http://aviadezra.blogspot.cz/2009/05/uml-association-aggregation-composition.html - what is the difference between

I am relatively new to spark with Scala. currently I am trying to aggregate order data in spark over a 12 months period that slides monthly. Below is a simple sample of my data, I tried to format it so you can easily test it import spark.implicits._ import org.apache.spark.sql._ import org.apache.spark.sql.functions._ var sample = Seq(("C1","01/01/2016", 20), ("C1","02/01/2016", 5), ("C1","03/01/2016", 2), ("C1","04/01/2016", 3), ("C1","05/01/2017", 5), ("C1","08/01/2017", 5), ("C1","01/02/2017", 10), ("C1","01/02/2017", 10), ("C1","01/03/2017", 10)).toDF("id","order_date", "orders") sample =