Tutorial by Topics: k

In this topic Spark Users can find different configurations of Spark SQL, which is the most used component of Apache Spark framework.

The data.table package has undergone a number of changes and innovations over time. Here are some potential pitfalls that can help users looking at legacy code or reviewing old blog posts.

This document covers TCP/IP networking, network administration and system configuration basics. Linux can support multiple network devices. The device names are numbered and begin at zero and count upwards. For example, a computer with two NICs will have two devices labeled eth0 and eth1.

Packages in Scala manage namespaces in large programs. For example, the name connection can occur in the packages com.sql and org.http. You can use the fully qualified com.sql.connection and org.http.connection, respectively, in order to access each of these packages.

What Is Katana? Katana is a set of open source components for building and hosting OWIN-based web applications, maintained by the Microsoft Open Technologies Group.Katana provides an implementation of the OWIN specification, and is in fact used in an increasing number of ASP.NET project templates. ...

In iOS 10 Apple is extending the scope of privacy control. User need to ask the use permission before access the user private data in following key :Calendar,Contact,Reminder,Photo,Bluetooth Sharing,Microphone , Camera ,Location,Heath,HomeKit ,MediaLibrary,Motion,CallKit,Speech Recognition, SiriKit...

code samples and some other stuff

This topic will be about modern C++ style Berkeley Socket Programming (This is code for Linux, but easily portable to other platforms)

package in java is used to group class and interfaces. This helps developer to avoid conflict when there are huge numbers of classes. If we use this package the classes we can create a class/interface with same name in different packages. By using packages we can import the piece of again in anothe...

This tutorial shows how to create a workspace. A workspace is a set of directories in which a related set of ROS code lives. One can have multiple ROS workspaces, but it is possible to work only in one at a time.

This tutorial shows how to create a package in ROS. Packages sit inside workspaces, in the src directory. Each package directory must have a CMakeLists.txt and a package.xml files.

Whenever your app experiences an error, Heroku will return a standard error page with the HTTP status code 503. To help you debug the underlying error, however, the platform will also add custom error information to your logs. Each type of error gets its own error code, with all HTTP errors starting...

The Date Time Picker allows a user to choose both a date (month/date/year) as well as a time of day (hours/minutes/seconds). A user can then output the date format and return format based on [PHP date()][1] acceptable methods. This is helpful for querying custom post types like events, tour dates, o...

A DataFrame is an abstraction of data organized in rows and typed columns. It is similar to the data found in relational SQL-based databases. Although it has been transformed into just a type alias for Dataset[Row] in Spark 2.0, it is still widely used and useful for complex processing pipelines mak...

From Swift Documentarion A closure is said to escape a function when the closure is passed as an argument to the function, but is called after the function returns. When you declare a function that takes a closure as one of its parameters, you can write @escaping before the parameter’s type to indi...

Example on how to add a spell check box to a WindowsForms application. This example DOES NOT require Word to be installed nor does it use Word in any way. It uses WPF Interop using the ElementHost control to create a WPF UserControl from a WPF TextBox. WPF TextBox has a built in function for spel...

A customization of the Android RangeSeekBar proposed by Alex Florescu at https://github.com/anothem/android-range-seek-bar It allows to define a step value (increment), when moving the seek bar 1- Add the increment attribute in attrs.xml <attr name="increment" format="integ...

Sometimes you need to generate the skeleton for the test cases based on the classes you have in your project.

This tutorial will show you how to use Weka in JAVA code, load data file, train classifiers and explains some of important concepts behind machine learning. Weka is a toolkit for machine learning. It includes a library of machine learning and visualisation techniques and features a user friendly G...