Tutorial by Examples: r

Objective-C Import the following to your ViewController #import <CoreImage/CoreImage.h> #import <CoreImage/CoreImage.h> #import <QuartzCore/QuartzCore.h> Call the function [self faceDetector]; Function definition: -(void)faceDetector { // Load the picture for face...

Go through the steps: Add 'NSAppleMusicUsageDescription' to your Info.plist for the privacy authority. Make sure your music is available in your iPhone. It will not work in the simulator. iOS 10.0.1 import UIKit import AVFoundation import MediaPlayer class ViewController: UIViewControll...

public static Boolean ExportDB(String DATABASE_NAME , String packageName , String folderName){ //DATABASE_NAME including ".db" at the end like "mayApp.db" String DBName = DATABASE_NAME.substring(0, DATABASE_NAME.length() - 3); File data = Environment.getDataDir...

A simple AutoIt script showing some of the basic features of the language. Note that semicolons introduce comments Save this as "HelloWorld.au3" ; Include constants. In this case, for the MsgBox() function #include <MsgBoxConstants.au3> ; Define and initialize the title of a ...

For Microfocus, it uses the "SleepEx" API. As an example; environment division. special-names. call-convention 74 is winAPI. : : 01 wSleep-time pic 9(8) comp-5. 01 wSleep-ok pic 9(8) comp-5. ...

Core Plot provides a podspec, so you can use cocoapods as your library manager which should make installing and updating much simpler Install cocoapods on your system In the project directory add a text file to your project called Podfile by typing pod init in your project directory In the Podfil...

Private Sub Get_Last_Used_Row_Index() Dim wS As Worksheet Set wS = ThisWorkbook.Sheets("Sheet1") Debug.Print LastRow_1(wS) Debug.Print LastRow_0(wS) End Sub You can choose between 2 options, regarding if you want to know if there is no data in the worksheet :...

Although it might not be proper to do such thing in a view if you intend to separate concerns strictly, the php Blade directive allows a way to execute PHP code, for instance, to set a variable: @php($varName = 'Enter content ') (same as:) @php $varName = 'Enter content '; @endphp late...

POST https://analyticsreporting.googleapis.com/v4/reports:batchGet?access_token={Access token from auth request} { "reportRequests":[ { "viewId":"XXXX", "dateRanges":[ { "startDate":"2015-06-15", &q...

Processing provides method rect() to draw a rectangle. This code draws a white 50 X 50 rectangle on black background. void setup() { size(500, 500); background(0); fill(255); noStroke(); } void draw() { rect(225, 225, 50, 50); } The signature of method rect() is thi...

Instances have a lot of metadata that gets returned from a call to describe-instances, but often times you just want to see the basics. You can use a JMESPath query combined with table output to show concise instance information in an easily readable way. aws ec2 describe-instances --output table -...

There are several packages which can run Processing sketches in the Atom editor. These instructions use the Script package. There are also available packages for syntax highlighting and autocomplete, which are required for Script to identify Processing filetypes. Install the Script plugin. Either b...

In this example, we will look at a method for returning the last non-empty column in a row. This method will work regardless of empty regions within the data set. However caution should be used if merged cells are involved, as the End method will be "stopped" against a merged region, ret...

First of all, Merged Cells are there only to improve the look of your sheets. So it is literally the last thing that you should do, once your sheet and workbook are totally functional! Where is the data in a Merged Range? When you merge a Range, you'll only display one block. The data will be ...

class MyResourceAdapter implements javax.resource.spi.ResourceAdapter { public void start(BootstrapContext ctx){..} public void stop(){..} public void endpointActivation (MessageEndpoingFactory mf, ActivationSpec a){..} public void endpointDeactivation (MessageEndpoingFact...

For example: You are going to migrate an existing column from non-required to required. In this case you might need to fill some default values in your migration for rows where the altered fields are actually NULL. In case the default value is simple (e.g. "0") you might use a default or d...

Pigeonhole Sort is a sorting algorithm that is suitable for sorting lists of elements where the number of elements (n) and the number of possible key values (N) are approximately the same. It requires O(n + Range) time where n is number of elements in input array and ‘Range’ is number of possible va...

Relational Algebra is not a full-blown SQL language, but rather a way to gain theoretical understanding of relational processing. As such it shouldn't make references to physical entities such as tables, records and fields; it should make references to abstract constructs such as relations, tuples ...

import Foundation class CookiesSingleton { static let instance : CookiesSingleton = CookiesSingleton() static var enableDebug = true func loadCookies() { if let cookiesDetails = NSUserDefaults.standardUserDefaults().objectForKey("customeWebsite") { for (keys,_) i...

Radix Sort is lower bound comparison based algorithm. It is a non-comparative integer sorting algorithm that sorts data with integer keys by grouping keys by individual digits which share some significant position and value. Radix sort is a linear time sorting algorithm that sort in O(n+k) time whe...