November 2023
Intermediate to advanced
576 pages
13h 30m
German
Content preview from Handbuch Data Science mit Python
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KAPITEL 12
Strukturierte Daten: NumPys strukturierte Arrays
Zwar lassen sich die Daten meistens gut durch Arrays gleichartiger Werte repräsentieren, das ist jedoch nicht immer der Fall. In diesem Kapitel geht es um NumPys strukturierte Arrays und Record-Arrays, die das effiziente Speichern von zusammengesetzten, ungleichartigen Daten ermöglichen. Die hier vorgestellten Verfahren sind zwar für einfache Operationen durchaus nützlich, in Szenarien wie diesen greift man jedoch häufig auf Pandas DataFrames zurück, mit denen wir uns in Teil III befassen werden.
In [1]: import numpy as np
Nehmen wir an, dass wir verschiedene Kategorien von Daten über eine gewisse Anzahl von Personen besitzen (wie etwa Name, Alter und Gewicht) und diese Werte speichern ...
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