https://github.com/erdogant/ismember

ismember
https://github.com/erdogant/ismember

arrays ismember lookup matching

Last synced: 6 months ago
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ismember

• Host: GitHub
• URL: https://github.com/erdogant/ismember
• Owner: erdogant
• License: other
• Created: 2020-01-19T21:42:35.000Z (over 5 years ago)
• Default Branch: master
• Last Pushed: 2025-03-02T21:24:22.000Z (7 months ago)
• Last Synced: 2025-04-12T06:20:27.290Z (6 months ago)
• Topics: arrays, ismember, lookup, matching
• Language: Python
• Homepage: https://erdogant.github.io/ismember
• Size: 3.39 MB
• Stars: 8
• Watchers: 3
• Forks: 4
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • Funding: .github/FUNDING.yml
  • License: LICENSE
  • Citation: CITATION.cff

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README

          
# ismember

[![Python](https://img.shields.io/pypi/pyversions/ismember)](https://img.shields.io/pypi/pyversions/ismember)

[![PyPI Version](https://img.shields.io/pypi/v/ismember)](https://pypi.org/project/ismember/)

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[![License](https://img.shields.io/badge/license-MIT-green.svg)](https://github.com/erdogant/ismember/blob/master/LICENSE)

[![Downloads](https://pepy.tech/badge/ismember)](https://pepy.tech/project/ismember)

[![Downloads](https://pepy.tech/badge/ismember/month)](https://pepy.tech/project/ismember/)

[![Sphinx](https://img.shields.io/badge/Sphinx-Docs-Green)](https://erdogant.github.io/ismember/)

``ismember`` is a Python library that checks whether the elements in X is present in Y. 

# 

**⭐️ Star this repo if you like it ⭐️**

# 

### [Documentation pages](https://erdogant.github.io/ismember/)

On the [documentation pages](https://erdogant.github.io/ismember/) you can find more information about ``ismember`` with examples. 

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##### Install ismember from PyPI

```bash

pip install ismember     # normal install

pip install -U ismember  # update if needed

```

### Import ismember package

```python

from ismember import ismember

```



#### Quick example

Use the documentation pages for more detailed usage. Some of the most used functionalities are linked below.

```python

from ismember import ismember

# Example with lists

I, idx = ismember([1,2,3,None], [4,1,2])

I, idx = ismember(["1","2","3"], ["4","1","2"])

```

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#### [Example: Check whether the elements of X are present in Y](https://erdogant.github.io/ismember/pages/html/Examples.html#)

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#### [Example: Determine the corresponding location of the values that are present in Y array](https://erdogant.github.io/ismember/pages/html/Examples.html#determine-the-corresponding-location-of-the-values-that-are-present-in-y-array)

#

#### [Example: Row wise comparison](https://erdogant.github.io/ismember/pages/html/Examples.html#row-wise-comparison-1)

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#### [Example: Elementwise comparison](https://erdogant.github.io/ismember/pages/html/Examples.html#elementwise-comparison)

 


### References

* https://in.mathworks.com/help/matlab/ref/ismember.html

### Maintainer

* Erdogan Taskesen, github: [erdogant](https://github.com/erdogant)

* Contributions are welcome.

* If you wish to buy me a Coffee for this work, it is very appreciated :)