November 2023
Intermediate to advanced
576 pages
13h 30m
German
Content preview from Handbuch Data Science mit PythonBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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KAPITEL 6
Berechnungen mit NumPy-Arrays: universelle Funktionen
Bislang haben wir uns mit den praktischen Grundlagen von NumPy befasst. In den folgenden Kapiteln werden wir der Frage auf den Grund gehen, warum NumPy in Pythons Data-Science-Welt von so herausragender Bedeutung ist. Fakt ist, dass es eine einfache und flexible Schnittstelle für optimierte Berechnungen mit Daten-Arrays bereitstellt.
Berechnungen mit NumPy-Arrays können äußerst schnell, aber auch sehr langsam sein. Für eine hohe Geschwindigkeit ist die Verwendung von vektorisierten Operationen entscheidend, die im Allgemeinen durch NumPys universelle Funktionen (engl. Universal Functions oder auch UFuncs) implementiert sind. Dieses Kapitel erläutert die Notwendigkeit von NumPys UFuncs, ...
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