Subsetting Lists

Introduction to Python

Hugo Bowne-Anderson

Data Scientist at DataCamp

Subsetting lists

fam = ["liz", 1.73, "emma", 1.68, "mom", 1.71, "dad", 1.89]
fam

['liz', 1.73, 'emma', 1.68, 'mom', 1.71, 'dad', 1.89]

fam[3]

1.68
Introduction to Python

Subsetting lists

['liz', 1.73, 'emma', 1.68, 'mom', 1.71, 'dad', 1.89]

fam[6]

'dad'

fam[-1]

1.89

fam[7]

1.89
Introduction to Python

Subsetting lists

['liz', 1.73, 'emma', 1.68, 'mom', 1.71, 'dad', 1.89]

fam[6]

'dad'

fam[-1]  # <-

1.89

fam[7] # <-

1.89
Introduction to Python

List slicing

fam

['liz', 1.73, 'emma', 1.68, 'mom', 1.71, 'dad', 1.89]

fam[3:5]

[1.68, 'mom']

fam[1:4]

[1.73, 'emma', 1.68]

The slicing syntax for Python lists, showing that the start value is included in the subset, while the stop value is excluded.

Introduction to Python

List slicing

fam

['liz', 1.73, 'emma', 1.68, 'mom', 1.71, 'dad', 1.89]

fam[:4]

['liz', 1.73, 'emma', 1.68]

fam[5:]

[1.71, 'dad', 1.89]
Introduction to Python

Let's practice!

Introduction to Python

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