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Mastering Development

Calculate weekly retention in google big query

I have a big table in google big query and there are two columns on which I want to perform retention:- Date user 2021-02-03 08:35:07 UTC foo@abc.com 2021-02-03 08:35:07 UTC foo1@abc.com 2021-02-04 08:35:07 UTC foo2@abc.com 2021-02-05 08:35:07 UTC foo@abc.com 2021-02-03 08:35:07 UTC foo1@abc.com 2021-02-10 08:35:07 UTC foo@abc.com 2021-02-13 08:35:07 UTC foo1@abc.com 2021-02-18 08:35:07 UTC foo3@abc.com […]

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Mastering Development

Inconsistent replication of numpy random generator using random.RandomState(None) or 0

I have had this problem before. At the time, I imported random a number of times. This time I import numpy a single time among all modules. EDITED Using None might have been the problem. But still not working with 0. Minimal example working, so it’s deeper in the code and not about importing anything […]

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Mastering Development

why does my a star algorithm not work in javascript?

function algorithm(){ if(startPoint === true && endPoint === true){ //add the heuristic distance to the start position from the final position startPosition.h = distance([startPosition.x, startPosition.y]); let openList = [] openList.push(startPosition) let closedList = [] while (openList.length > 0){ //print(openList) lowPos = 0; for(let i = 0; i < openList.length; i++){ if(openList[i].f < openList[lowPos].f){ lowPos = […]

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Mastering Development

How to build server streaming via grpc and nest.js?

Need to create some "channel" to which the client can subscribe and periodically receive messages. Within the current technology stack, I’m trying to organize something like this: proto file: syntax = "proto3"; package testtime; service TimeService { rpc GetTimeStream(Empty) returns (stream TimeStreamResponse); } message Empty { } message TimeStreamResponse { string result = 1; } […]

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Mastering Development

ThreeJS Match GLTF Model To Size Of Bounding Box

I want to scale the imported GLB Model to the same size a cube in my scene. It is needed to make sure that the model stays inside the shadow casting areas and is big enough to make the shadows visible. I ‘ve calculated the bounding Boxes of both objects already: // shadowcasting area var […]

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Mastering Development

Calculate geographic distance between points using NetTopologySuite

I am trying to calculate distance between two points using NetTopologySuite. Since I am referencing Microsoft documentation, I Came up with following GeometryExtension and GeometryHelper classes: public static class GeometryExtensions { private static readonly CoordinateSystemServices _coordinateSystemServices = new CoordinateSystemServices(new Dictionary<int, string> { // Coordinate systems: [4326] = GeographicCoordinateSystem.WGS84.WKT, // CRS for Denmark ESPG 25832. Source: […]

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Mastering Development

How to filter out features from sparse.model.matrix for xgboost model

I have created an XGBoost model by following the example from the following link: https://rpubs.com/mattBrown88/TimeSeriesMachineLearning The way I understand the sparse.model.matrix is that it among other things transform factor variables into dummy variables that can be used in the XGBOOST model. My question comes now: I created a model with all my features, but next […]

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Mastering Development

python 5 d matrix writing in nc file

I recently migrated from MATLAB to Python. The problem is I am reading a U variable from a .nc file which has a shape of (2920 x 2 x 292 X 326)=[(365×8) x level x lat x lon] where 365 are days and 8 times data in a day. I want to make them monthly […]

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Ask Board Games Games

Can “Fling” target a Player?

If I cast "Fling", can I deal damage to my opponent equal to the sacrificed creature’s Power or does it only target Creatures/Planeswalkers?

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Mastering Development

How to resolve dependency in serilog custom sink?

I have multi tenant system and I need to log in different database based on tenant id. i have created custom sink but I’m not able to resolve my dependencies in custom sink class CustomLogSink.cs : public class CustomLogSink : ILogEventSink { public CustomLogSink(IWorkSpaceProvider provider) { } public void Emit(LogEvent logEvent) { } } Program.cs […]