Python | Pandas Series.nonzero () to get the index of all non-zero values ​​in a series

| | | | | | | | | | |

Pandas Series.nonzero() — it is a method with no arguments. As the name suggests, by returning non-zero values ‚Äã‚Äãfrom a series, it returns the index of all non-zero values. The returned series of indexes can be passed to the method iloc () to return all nonzero values ‚Äã‚Äãat those indices.

# pandas module import

import pandas as pd


# numpy module import

import numpy as np


# create a list

list = [ 1 , 0 , 12 , 1 , 0 , 4 , 22 , 0 , 3 , 9 ]


# create series

series = pd.Series ( list )


# calling the .nonzero () method

result = series.nonzero ()


# dis play

print (result)


# getting values ‚Äã‚Äãusing the iloc method

values ‚Äã‚Äã = series.iloc [result]


# display
values ‚Äã‚Äã

Exit:

 (array ([0, 2, 3, 5, 6 , 8, 9]),) 0 1 2 12 3 1 5 4 6 22 8 3 9 9 dtype: int64 

As shown in the output, the index position of each nonzero element was returned, and the values ‚Äã‚Äãin this positions were returned by the iloc method.

Shop

Gifts for programmers

Best Python online courses for 2022

$FREE
Gifts for programmers

Best laptop for Excel

$
Gifts for programmers

Best laptop for Solidworks

$399+
Gifts for programmers

Best laptop for Roblox

$399+
Gifts for programmers

Best computer for crypto mining

$499+
Gifts for programmers

Best laptop for Sims 4

$
Gifts for programmers

Best laptop for Zoom

$499
Gifts for programmers

Best laptop for Minecraft

$590

Latest questions

PythonStackOverflow

Common xlabel/ylabel for matplotlib subplots

1947 answers

PythonStackOverflow

Check if one list is a subset of another in Python

1173 answers

PythonStackOverflow

How to specify multiple return types using type-hints

1002 answers

PythonStackOverflow

Printing words vertically in Python

909 answers

PythonStackOverflow

Python Extract words from a given string

798 answers

PythonStackOverflow

Why do I get "Pickle - EOFError: Ran out of input" reading an empty file?

606 answers

PythonStackOverflow

Python os.path.join () method

384 answers

PythonStackOverflow

Flake8: Ignore specific warning for entire file

360 answers

News


Wiki

Python | How to copy data from one Excel sheet to another

Common xlabel/ylabel for matplotlib subplots

Check if one list is a subset of another in Python

How to specify multiple return types using type-hints

Printing words vertically in Python

Python Extract words from a given string

Cyclic redundancy check in Python

Finding mean, median, mode in Python without libraries

Python add suffix / add prefix to strings in a list

Why do I get "Pickle - EOFError: Ran out of input" reading an empty file?

Python - Move item to the end of the list

Python - Print list vertically