Tutorial by Topics: le

How to write good, readable SQL queries, and example of good practices.

d3 is a powerful library for creating interactive charts; however, that power stems from users having to work at a lower level than other interactive libraries. Consequently many of the examples for d3 charts are designed to demonstrate how to produce a particular thing - e.g. whiskers for a box and...

Apache spark MLib provides (JAVA, R, PYTHON, SCALA) 1.) Various Machine learning algorithms on regression, classification, clustering, collaborative filtering which are mostly used approaches in Machine learning. 2.) It supports feature extraction, transformation etc. 3.) It allows data practitio...

One of the features introduced in Java 9 is the multi-release Jar (MRJAR) which allows bundling code targeting multiple Java releases within the same Jar file. The feature is specified in JEP 238.

Scribble is the tool used to create Racket's documentation, and you can document your own packages with it too! When published, their documentation will appear at https://docs.racket-lang.org/, alongside the main Racket documentation. Scribble is implemented as a language for the Racket platform. S...

This post provides steps to use variables (User Variable, Package Parameter and Project Parameter) in the script component and viewing the updated value using Breakpoint and Watch window. ParameterDetailsUserVarIt is like a local variable used inside a package. Its value can be read and modifie...

The Archive module Microsoft.PowerShell.Archive provides functions for storing files in ZIP archives (Compress-Archive) and extracting them (Expand-Archive). This module is available in PowerShell 5.0 and above. In earlier versions of PowerShell the Community Extensions or .NET System.IO.Compressio...

Google Spreadsheets has a powerful add on called Google Forms that allows a web developer to add simple forms easily to web sites in order to collect data from users. This article discusses the way to embed these into a web application. I've also created a Youtube video with a running commentary, ...

This section provides an overview of what task-parallel-library is, and why a developer might want to use it. It should also mention any large subjects within task-parallel-library, and link out to the related topics. Since the Documentation for task-parallel-library is new, you may need to cre...

The ZipFile class lives in the System.IO.Compression namespace. It can be used to read from, and write to Zip files. You can also use a MemoryStream instead of a FileStream. Exceptions ExceptionConditionArgumentExceptionThe stream has already been closed, or the capabilities of t...

Google App Engine(GAE) is a Platform as a Service(PaaS) offering on Google Cloud Platform, which abstracts away the infrastructure so that you focus on your web application code. App Engine handles both automatic scaling up and down of instances on-demand for your web application based on the numbe...

When starting with unit-testing all kinds of questions come up: What is unit-testing? What is a SetUp and TearDown? How do I deal with dependencies? Why do unit-testing at all? How do I make good unit tests? This article will answer all these questions, so you can start unit-testing in any languag...

A model widely used in traditional statistics is the linear regression model. In this article, the objective is to follow the step-by-step implementation of this type of models. We are going to represent a simple linear regression structure. For our study, we will analyze the age of the children on...

Deleting documents from a Lucene index is easy when you have a primary key field in your document (like in traditional SQL databases). However, sometimes deleting a number of documents based on multiple fields in the document is what you need. The Lucene API allows you to achieve this by specifying...

This topic is based on How to integrate google sign-in, On android apps

Advance ways to manage selections of UITableViewCell. Examples when simple didSelect... form UITableViewDelegate is not enough to achieve something.