<?xml version="1.0"?>
<oembed><version>1.0</version><provider_name>ARC</provider_name><provider_url>https://eaa-online.org/arc</provider_url><author_name>MARTIEN LUBBERINK</author_name><author_url>https://eaa-online.org/arc/blog/members/23/</author_url><title>Pandas and Hierarchical Indexing - ARC</title><type>rich</type><width>600</width><height>338</height><html>&lt;blockquote class="wp-embedded-content" data-secret="OETWGq1L3U"&gt;&lt;a href="https://eaa-online.org/arc/blog/2018/04/28/pandas-and-hierarchical-indexing/"&gt;Pandas and Hierarchical Indexing&lt;/a&gt;&lt;/blockquote&gt;&lt;iframe sandbox="allow-scripts" security="restricted" src="https://eaa-online.org/arc/blog/2018/04/28/pandas-and-hierarchical-indexing/embed/#?secret=OETWGq1L3U" width="600" height="338" title="&#x201C;Pandas and Hierarchical Indexing&#x201D; &#x2014; ARC" data-secret="OETWGq1L3U" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"&gt;&lt;/iframe&gt;&lt;script type="text/javascript"&gt;
/**
 * WordPress inline HTML embed
 *
 * @since 4.4.0
 * @output wp-includes/js/wp-embed.js
 *
 * This file cannot have ampersands in it. This is to ensure
 * it can be embedded in older versions of WordPress.
 * See https://core.trac.wordpress.org/changeset/35708.
 */
(function ( window, document ) {
	'use strict';

	var supportedBrowser = false,
		loaded = false;

		if ( document.querySelector ) {
			if ( window.addEventListener ) {
				supportedBrowser = true;
			}
		}

	/** @namespace wp */
	window.wp = window.wp || {};

	if ( !! window.wp.receiveEmbedMessage ) {
		return;
	}

	/**
	 * Receive embed message.
	 *
	 * @param {MessageEvent} e
	 */
	window.wp.receiveEmbedMessage = function( e ) {
		var data = e.data;

		if ( ! data ) {
			return;
		}

		if ( ! ( data.secret || data.message || data.value ) ) {
			return;
		}

		if ( /[^a-zA-Z0-9]/.test( data.secret ) ) {
			return;
		}

		var iframes = document.querySelectorAll( 'iframe[data-secret="' + data.secret + '"]' ),
			blockquotes = document.querySelectorAll( 'blockquote[data-secret="' + data.secret + '"]' ),
			allowedProtocols = new RegExp( '^https?:$', 'i' ),
			i, source, height, sourceURL, targetURL;

		for ( i = 0; i &lt; blockquotes.length; i++ ) {
			blockquotes[ i ].style.display = 'none';
		}

		for ( i = 0; i &lt; iframes.length; i++ ) {
			source = iframes[ i ];

			if ( e.source !== source.contentWindow ) {
				continue;
			}

			source.removeAttribute( 'style' );

			/* Resize the iframe on request. */
			if ( 'height' === data.message ) {
				height = parseInt( data.value, 10 );
				if ( height &gt; 1000 ) {
					height = 1000;
				} else if ( ~~height &lt; 200 ) {
					height = 200;
				}

				source.height = height;
			}

			/* Link to a specific URL on request. */
			if ( 'link' === data.message ) {
				sourceURL = document.createElement( 'a' );
				targetURL = document.createElement( 'a' );

				sourceURL.href = source.getAttribute( 'src' );
				targetURL.href = data.value;

				/* Only follow link if the protocol is in the allow list. */
				if ( ! allowedProtocols.test( targetURL.protocol ) ) {
					continue;
				}

				/* Only continue if link hostname matches iframe's hostname. */
				if ( targetURL.host === sourceURL.host ) {
					if ( document.activeElement === source ) {
						window.top.location.href = data.value;
					}
				}
			}
		}
	};

	function onLoad() {
		if ( loaded ) {
			return;
		}

		loaded = true;

		var isIE10 = -1 !== navigator.appVersion.indexOf( 'MSIE 10' ),
			isIE11 = !!navigator.userAgent.match( /Trident.*rv:11\./ ),
			iframes = document.querySelectorAll( 'iframe.wp-embedded-content' ),
			iframeClone, i, source, secret;

		for ( i = 0; i &lt; iframes.length; i++ ) {
			/** @var {IframeElement} */
			source = iframes[ i ];

			secret = source.getAttribute( 'data-secret' );
			if ( ! secret ) {
				/* Add secret to iframe */
				secret = Math.random().toString( 36 ).substr( 2, 10 );
				source.src += '#?secret=' + secret;
				source.setAttribute( 'data-secret', secret );
			}

			/* Remove security attribute from iframes in IE10 and IE11. */
			if ( ( isIE10 || isIE11 ) ) {
				iframeClone = source.cloneNode( true );
				iframeClone.removeAttribute( 'security' );
				source.parentNode.replaceChild( iframeClone, source );
			}

			/*
			 * Let post embed window know that the parent is ready for receiving the height message, in case the iframe
			 * loaded before wp-embed.js was loaded. When the ready message is received by the post embed window, the
			 * window will then (re-)send the height message right away.
			 */
			source.contentWindow.postMessage( {
				message: 'ready',
				secret: secret
			}, '*' );
		}
	}

	if ( supportedBrowser ) {
		window.addEventListener( 'message', window.wp.receiveEmbedMessage, false );
		document.addEventListener( 'DOMContentLoaded', onLoad, false );
		window.addEventListener( 'load', onLoad, false );
	}
})( window, document );
&lt;/script&gt;
</html><thumbnail_url>https://eaa-online.org/app/uploads/sites/3/2018/05/hqdefault.jpg</thumbnail_url><thumbnail_width>480</thumbnail_width><thumbnail_height>360</thumbnail_height><description>Pandas' ability to index data offers additional power to the way you work with data. More interesting is pandas' hierarchical indexing feature, it allows you to slice and dice data in convenient ways. &nbsp; Python and pandas allow you to manage data more efficiently and effectively than, say, Stata. One important problem with Stata is [&hellip;]</description></oembed>
