Series

This chapter ends with a whole movie file, summed up in four lines:

It starts small. A list knows values by position; pandas, the library for tables, gives each a label:

That labelled column is a Series. Give pd.Series the values and, with index=, the labels:

import pandas as pd

prices = pd.Series([1.5, 0.5, 2.5], index=["apple", "banana", "mango"])
print(prices)
print(prices["mango"])

This prints the labelled values, their type, then the mango's price:

apple     1.5
banana    0.5
mango     2.5
dtype: float64
2.5

prices.mean() is 1.5, as on an array. Without index=, the labels are 0, 1, 2.