Tutorial by Topics: and

reactive, reactiveValue and eventReactive are various kinds of reactive expressions in Shiny. They yield output which can be used as input in other expressions, which will in turn take a dependency on the reactive expression. observe and observeEvent are similar to reactive expressions. The big dif...

Take, Skip, TakeWhile and SkipWhile are all called Partitioning Operators since they obtain a section of an input sequence as determined by a given condition. Let us discuss these operators

As you already know, for the sake of immutability you can't process data using for loops and while loops. So we have recursive functions to rescue.

Excel specifications and limits (Excel 2016-2013, Excel 2010, Excel 2007) Worksheet and workbook specifications and limits FeatureMaximum limitOpen workbooksLimited by available memory and system resourcesWorksheet size1,048,576 rows by 16,384 columnsColumn width255 charactersRow height40...

In Xamarin.Android the BluetoothSocket.InputStream and BluetoothSocket.OutputStream properties are by design automatically converted to System.IO.Stream. In case of so called interactive communication protocol, when server responds only when client talks to it, System.IO.Stream is not good because ...

There are scenarios when dealing with service layer in liferay, when we need to query database with too many clauses or dealing with multiple tables.In such cases,we use either of: 1)Dynamic query(wrapper on Hibernate criteria API) 2)Custom SQL queries References: Custom SQL Dynamic quer...

Android Architecture Components is new collection of libraries that help you design robust, testable, and maintainable apps. Main parts are: Lifecycles, ViewModel, LiveData, Room.

Applescript is a powerful scripting language that can be used directly from the Terminal command line to accomplish a multitude of tasks. All examples listed in this section are meant to be used from the Terminal application.

This topic includes short, brief but comprehensive examples of loading pre-trained weights, inserting new layers on top or in the middle of pre-tained ones, and training a new network with partly pre-trained weights. An example for each of out-of-the-box pre-trained networks, available in Keras libr...

Numpy arrays can be saved and loaded in various ways.

There are many ways to interact with the operating system. From within Ruby you can run shell/system commands or sub-processes. Exec: Exec is very limited in functionality and when executed will exit the Ruby program and run the command. The System Command: The System command runs in a sub-...

The following examples show how to retrieve the default names of the system fonts that are store in the /system/fonts/ directory and how to use a system font to set the typeface of a TextView element.

A Virtual Private Network (VPN) is a secure network that people use to connect to the internet from anywhere in the world. A VPN encrypts all of a user’s traffic and routes it through an intermediary server in a location of the user’s choosing. This can be helpful for people who want to access conte...