Tutorial by Examples: f

@Mojo(name = "hi", defaultPhase = LifecyclePhase.COMPILE)

@Parameter(defaultValue = "${project.build.directory}") private File buildDirectory;

Within the CodeIgniter, there are two main directories to worry about: system and application. The system folder contains the core guts of CodeIgniter. The application folder will contain all of the code specific to your application, including models, controllers, views and other relevant libraries...

When you want for example enforce the use of the parameter Password if the parameter User is provided. (and vise versa) Function Do-Something { Param ( [Parameter(Mandatory=$true)] [String]$SomeThingToDo, [Parameter(ParameterSetName="Credentials", man...

Function Do-Something { Param ( [Parameter(Mandatory=$true)] [String]$SomeThingToDo, [Parameter(ParameterSetName="Silently", mandatory=$false)] [Switch]$Silently, [Parameter(ParameterSetName="Loudly", mandatory=$false)] ...

SELECT date_trunc('week', <>) AS "Week" , count(*) FROM <> GROUP BY 1 ORDER BY 1;

COPY products(is_public, title, discount) TO 'D:\csv_backup\products_db.csv' DELIMITER ',' CSV HEADER; COPY categories(name) TO 'D:\csv_backup\categories_db.csv' DELIMITER ',' CSV HEADER;

COPY products TO 'D:\csv_backup\products_db.csv' DELIMITER ',' CSV HEADER; COPY categories TO 'D:\csv_backup\categories_db.csv' DELIMITER ',' CSV HEADER;

import matplotlib.pyplot as plt import numpy as np # generate 101 x and y values between -10 and 10 x = np.linspace(-10, 10, 101) y = np.linspace(-10, 10, 101) # make X and Y matrices representing x and y values of 2d plane X, Y = np.meshgrid(x, y) # compute z value of a point as a fun...

Problem situation Warehouse administrator has a sheet ("Record") where every logistics movement performed by the facility is stored, he may filter as needed, although, this is very time consuming and he would like to improve the process in order to calculate inquiries faster, for example:...

Some applications may want to create so-called "Fire & Forget" tasks which can be periodically triggered and do not need to return any type of value returned upon completion of the assigned task (for example, purging old temp files, rotating logs, autosaving state). In this example, w...

Here are the steps to generate test skeleton for existing code: Open Eclipse, and choose the project you want to create test cases for In the Package Explorer, select the java class you want to generate the Junit test for Go to File -> New -> Junit Test Cases Change the Source folder to ...

The Iris flower data set is a widely used data set for demonstration purposes. We will load it, inspect it and slightly modify it for later use. import java.io.File; import java.net.URL; import weka.core.Instances; import weka.core.converters.ArffSaver; import weka.core.converters.CSVLoader; i...

ZeroR is a simple classifier. It doesn't operate per instance instead it operates on general distribution of the classes. It selects the class with the largest a priori probability. It is not a good classifier in the sense that it doesn't use any information in the candidate, but it is often used as...

In order to build a good classifier we will often need to get an idea of how the data is structered in feature space. Weka offers a visualisation module that can help. Some dimensions already seperate the classes quite well. Petal-width orders the concept quite neatly, when compared to petal-widt...

It is often necessary to execute a long-running task and use the result of that task once it has completed. In this example, we will create two classes: One which implements the Callable<T> interface (where T is the type we wish to return), and one which contains a main() method. AsyncValueT...

Eventloop in pseudo code An event loop is a loop that waits for events and then reacts to those events while true: wait for something to happen react to whatever happened Example of a single-threaded HTTP server with no event loop while true: socket = wait for the next TCP c...

Terminal Commands: rails g model Product name:string quantity:integer price:decimal{12,2} rake db:migrate Lates create controller. Terminal Commands: rails g controller Products Controller Code: class HistoriesController < ApplicationController def create file = Dir.glob(...

When dealing with large configuration sets of value, it might become quite unhandy to load them one buy one. Option model which comes with asp.net offers a convenient way to map a section to a dotnet poco: For instance, one might hydrate StorageOptions directly from a configuration section b addin...

You can also source configuration from an in memory object such as a Dictionary<string,string> .AddInMemoryCollection(new Dictionary<string, string> { ["akey"] = "a value" }) This can reveal helpful in integration/unit testing scenarios.