Tutorial by Examples: p

Takes an array of information to generate the CAPTCHA as input and creates the image to your specifications, returning an array of associative data about the image. [array] ( 'image' => IMAGE TAG 'time' => TIMESTAMP (in microtime) 'word' => CAPTCHA WORD ) The "imag...

Once loaded you can generate a captcha like this: $vals = array( 'word' => 'Random word', 'img_path' => './captcha/', 'img_url' => 'http://example.com/captcha/', 'font_path' => './path/to/fonts/texb.ttf', 'img_width' => '150', 'img_height'...

Here is an example of usage with a database. On the page where the CAPTCHA will be shown you'll have something like this: $this->load->helper('captcha'); $vals = array( 'img_path' => './captcha/', 'img_url' => 'http://example.com/captcha/' ); $cap = create_captc...

Packages are collections of R functions, data, and compiled code in a well-defined format. Public (and private) repositories are used to host collections of R packages. The largest collection of R packages is available from CRAN. Some of the most popular R machine learning packages are the following...

from sklearn import svm X = [[1, 2], [3, 4]] #Training Samples y = [1, 2] #Class labels model = svm.SVC() #Making a support vector classifier model model.fit(X, y) #Fitting the data clf.predict([[2, 3]]) #After fitting, new data can be classified by using predict()

Intercepted method: public class ExampleService implements Example { @MyAnnotation public doHomework() { System.out.println("working"); } } Annotation: @Retention(RetentionPolicy.RUNTIME) @Target(ElementType.METHOD) public @interface MyAnnotation {} ...

These three map functions are equivalent, so use the variation that your team finds most readable. val numberNames = Map(1 -> "One", 2 -> "Two", 3 -> "Three") // 1. No extraction numberNames.map(it => s"${it._1} is written ${it._2}" ) // 2....

Let's say, we have an array: Item = {-1, 0, 3, 6}. We want to construct SegmentTree array to find out the minimum value in a given range. Our segment tree will look like: The numbers below the nodes show the indices of each values that we'll store in our SegmentTree array. We can see that, to sto...

The procedure to perform a RMQ is already shown in introduction. The pseudo-code for checking Range Minimum Query will be: Procedure RangeMinimumQuery(SegmentTree, qLow, qHigh, low, high, position): if qLow <= low and qHigh >= high //Total Overlap Return SegmentTree[position] el...

Import libraries (language dependency: python 2.7) import tensorflow as tf import numpy as np from sklearn.datasets import fetch_mldata from sklearn.model_selection import train_test_split load data, prepare data mnist = fetch_mldata('MNIST original', data_home='./') print "MNIST data,...

Collection Operators can be used in a KVC key path to perform an operation on a “collection-type” property (i.e. NSArray, NSSet and similar). For example, a common operation to perform is to count the objects in a collection. To achieve this, you use the @count collection operator: self.array = @[@...

Most of the time we like to get the total number of occurrence of a column value in a table for example: TABLE NAME : REPORTS ReportNameReportPriceTest10.00 $Test10.00 $Test10.00 $Test 211.00 $Test10.00 $Test 314.00 $Test 314.00 $Test 4100.00 $ SELECT ReportName AS REPORT ...

public class SimpleLoginView extends CustomComponent implements View, Button.ClickListener { public static final String NAME = "login"; private final TextField user; private final PasswordField password; private final Button loginButton; public SimpleLoginView() { setS...

public class SimpleLoginUI extends UI { @Override protected void init(VaadinRequest request) { // // Create a new instance of the navigator. The navigator will attach // itself automatically to this view. // new Navigator(this, this); // // The initial log ...

public class SimpleLoginMainView extends CustomComponent implements View { public static final String NAME = ""; Label text = new Label(); Button logout = new Button("Logout", new Button.ClickListener() { @Override public void buttonClick(ClickEvent event) { ...

@Theme("mobiletheme") @Widgetset("com.example.myapp.MyAppWidgetSet") @Title("My Mobile App") public class SimplePhoneUI extends UI { @Override protected void init(VaadinRequest request) { // Define a view class MyView extends NavigationView { ...

In C++, code must be declared or defined before usage. For example, the following produces a compile time error: int main() { foo(2); // error: foo is called, but has not yet been declared } void foo(int x) // this later definition is not known in main { } There are two ways to resolve...

This example will guide you how to get playlist data using the YouTube Data API on Android. SHA-1 fingerprint First you need to get an SHA-1 fingerprint for your machine. There are various methods for retrieving it. You can choose any method provided in this Q&A. Google API console and YouTub...

Here a Turtle Graphics Ninja Twist: import turtle ninja = turtle.Turtle() ninja.speed(10) for i in range(180): ninja.forward(100) ninja.right(30) ninja.forward(20) ninja.left(60) ninja.forward(50) ninja.right(30) ninja.penup() ninja.setposit...

The following Codes can be found from Weka course Given iris.arff is loaded in weka, inside Weka Explorer's R console or Weka KnowledgeFlow's R Scripting, you can play with the following codes to make beautiful plots: library(ggplot2) ggplot(rdata, aes(x = petallength)) + geom_density() ...