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Impara Indexes and Values | Basics
Introduction to pandas [track]

bookIndexes and Values

Series in pandas differ from numpy arrays in that they have indexes. These can be integers, floating-point numbers, strings, time series.

To get the series' indexes, use the .index attribute of a series object. To get values, use the values attribute. By default, indexes are integers starting from 0, but if you want to change them, you simply may reassign new list of indexes to the .index attribute. For instance,

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# Importing library import pandas as pd # Creating pandas series ser = pd.Series([1000, 2500, 1700]) # Getting series' indexes and values print(ser.index) print(ser.values) print(ser) # Changing series' indexes ser.index = ['first', 'second', 'third'] print(ser)
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As you can see, initial indexes were 0, 1, 2. After changing, they became 'first', 'second', 'third'.

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Sezione 1. Capitolo 3

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bookIndexes and Values

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Series in pandas differ from numpy arrays in that they have indexes. These can be integers, floating-point numbers, strings, time series.

To get the series' indexes, use the .index attribute of a series object. To get values, use the values attribute. By default, indexes are integers starting from 0, but if you want to change them, you simply may reassign new list of indexes to the .index attribute. For instance,

12345678910111213
# Importing library import pandas as pd # Creating pandas series ser = pd.Series([1000, 2500, 1700]) # Getting series' indexes and values print(ser.index) print(ser.values) print(ser) # Changing series' indexes ser.index = ['first', 'second', 'third'] print(ser)
copy

As you can see, initial indexes were 0, 1, 2. After changing, they became 'first', 'second', 'third'.

Tutto è chiaro?

Come possiamo migliorarlo?

Grazie per i tuoi commenti!

Sezione 1. Capitolo 3
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