March 2019
Intermediate to advanced
368 pages
7h 53m
German
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KAPITEL 7
Datum und Uhrzeit
7.0Einführung
Datum und Uhrzeit sind bei der Vorverarbeitung für maschinelles Lernen häufig zu berücksichtigen – ob es sich nun um die Uhrzeit eines bestimmten Verkaufs handelt oder um das Jahr einer Gesundheitsstatistik. In diesem Kapitel bauen wir eine Werkzeugsammlung von Strategien auf, mit denen sich Zeitreihendaten verarbeiten lassen. Dazu gehören auch der Umgang mit Zeitzonen und das Erstellen von zeitlich verzögerten Merkmalen. Insbesondere konzentrieren wir uns auf die Tools für Zeitreihen in der pandas-Bibliothek, die die Funktionalität vieler anderer Bibliotheken zentralisiert.
7.1Strings in Datumswerte konvertieren
Problem
Strings, die Datums- und Uhrzeitwerte darstellen, möchten Sie in Zeitreihendaten ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.