https://github.com/dilawar/cnpy2

STL vector to numpy array (format 2)
https://github.com/dilawar/cnpy2

Last synced: about 2 months ago
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STL vector to numpy array (format 2)

• Host: GitHub
• URL: https://github.com/dilawar/cnpy2
• Owner: dilawar
• Created: 2016-05-04T06:14:47.000Z (over 9 years ago)
• Default Branch: master
• Last Pushed: 2016-05-05T07:37:12.000Z (over 9 years ago)
• Last Synced: 2025-06-17T17:51:01.707Z (4 months ago)
• Language: C++
• Size: 19.5 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# cnpy2

This library writes a given STL vector of `double` of size N to a numpy ndarray

of shape = `( N/cols, cols)`. Two modes are supported:

 - Write mode "w" (the file will be overwritten)

 - Append mode "a" (this will append the new data to npy file and modify the

   haeder as well).

## Use case

See file `example1.cpp`. In this  example, I create a binary numpy file with 4

entries (2x2 shape), and then we append 100x100 entries in a for-loop.

This writes to numpy format version 2 (record arrays). See the `test.py` file.

There is much more complete project https://github.com/rogersce/cnpy which

writes/reads your data to numpy version 1.