Tutorial by Examples: am

Mage::app()->getStore()->getFrontendName();

Mage::app()->getStore()->getGroup()->getName()

Create a DataFrame from multiple lists by passing a dict whose values lists. The keys of the dictionary are used as column labels. The lists can also be ndarrays. The lists/ndarrays must all be the same length. import pandas as pd # Create DF from dict of lists/ndarrays df = pd.DataFrame({'...

Let's say you need to implement an automatic search box, but the search operation is somewhat costly, like sending a web request or hitting up a database. You may want to limit the amount of search being done. For example, the user is typing "C# Reactive Extensions" in the search box : I...

A series is a one-dimension data structure. It's a bit like a supercharged array, or a dictionary. import pandas as pd s = pd.Series([10, 20, 30]) >>> s 0 10 1 20 2 30 dtype: int64 Every value in a series has an index. By default, the indices are integers, running fro...

To make a Haskell program executable you must provide a file with a main function of type IO () main :: IO () main = putStrLn "Hello world!" When Haskell is compiled it examines the IO data here and turns it into a executable. When we run this program it will print Hello world!. If y...

from pandas_datareader import data # Only get the adjusted close. aapl = data.DataReader("AAPL", start='2015-1-1', end='2015-12-31', data_source='yahoo')['Adj Close'] >>> aapl.plot(title='AAPL Adj. C...

The default namespace is the namespace corresponding to the absence of any prefix. It can be declared with the special xmlns attribute. <?xml version="1.0"?> <foo xmlns="http://www.example.com/my-namespace"> <!-- the element foo is in the namespace htt...

Elements and attributes behave differently with respect to default namespaces. This is often the source of confusion. An attribute whose name has no prefix lives in no namespace, also when a default namespace is in scope. <?xml version="1.0"?> <foo attr="value" xmlns=...

A namespace binding (special xmlns or xmlns:... attribute) is in scope for all the descendants of the enclosing element, including this element. <?xml version="1.0"?> <root> <my:element xmlns:my="http://www.example.com/ns1"> <!-- here, the prefix my...

use lib 'includes'; use MySuperCoolModule; use lib 'includes'; adds the relative directory includes/ as another module search path in @INC. So assume that you have a module file MySyperCoolModule.pm inside includes/, which contains: package MySuperCoolModule; If you want, you can group as ma...

updateState by key can be used to create a stateful DStream based on upcoming data. It requires a function: object UpdateStateFunctions { def updateState(current: Seq[Double], previous: Option[StatCounter]) = { previous.map(s => s.merge(current)).orElse(Some(StatCounter(current))) } ...

mapWithState, similarly to updateState, can be used to create a stateful DStream based on upcoming data. It requires StateSpec: import org.apache.spark.streaming._ object StatefulStats { val state = StateSpec.function( (key: String, current: Option[Double], state: State[StatCounter]) =&g...

function meridiem(d:Date):String { return (d.hours > 11) ? "pm" : "am"; }

<?php use yii\db\Migration; class m150101_185401_create_news_table extends Migration { public function up() { } public function down() { echo "m101129_185401_create_news_table cannot be reverted.\n"; return false; } /* // Use safeUp/safeDown to run migra...

public function up() { $this->dropColumn('post', 'position'); $this->renameColumn('post', 'owner_id', 'user_id'); $this->alterColumn('post', 'updated', $this->timestamp()->notNull()->defaultValue('0000-00-00 00:00:00')); }

Technically, autoloading works by executing a callback when a PHP class is required but not found. Such callbacks usually attempt to load these classes. Generally, autoloading can be understood as the attempt to load PHP files (especially PHP class files, where a PHP source file is dedicated for a ...

Dynamic binding, also referred as method overriding is an example of run time polymorphism that occurs when multiple classes contain different implementations of the same method, but the object that the method will be called on is unknown until run time. This is useful if a certain condition dicta...

void doSomething(String... strings) { for (String s : strings) { System.out.println(s); } } The three periods after the final parameter's type indicate that the final argument may be passed as an array or as a sequence of arguments. Varargs can be used only in the final argume...

Swift class FooViewController: UIViewController { override func loadView() { view = FooView() } }