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Published inApr 2016
Reading LevelIntermediate
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ISBN-139781784393670
Edition1st Edition
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Authors (3):
Leo (Liang-Huan) Chin
Leo (Liang-Huan) Chin
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Leo (Liang-Huan) Chin

Leo (Liang-Huan) Chin is a data engineer with more than 5 years of experience in the field of Python. He works for Gogoro smart scooter, Taiwan, where his job entails discovering new and interesting biking patterns . His previous work experience includes ESRI, California, USA, which focused on spatial-temporal data mining. He loves data, analytics, and the stories behind data and analytics. He received an MA degree of GIS in geography from State University of New York, Buffalo. When Leo isn't glued to a computer screen, he spends time on photography, traveling, and exploring some awesome restaurants across the world. You can reach Leo at http://chinleock.github.io/portfolio/.
Read more about Leo (Liang-Huan) Chin

Tanmay Dutta
Tanmay Dutta
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Tanmay Dutta

Tanmay Dutta is a seasoned programmer with expertise in programming languages such as Python, Erlang, C++, Haskell, and F#. He has extensive experience in developing numerical libraries and frameworks for investment banking businesses. He was also instrumental in the design and development of a risk framework in Python (pandas, NumPy, and Django) for a wealth fund in Singapore. Tanmay has a master's degree in financial engineering from Nanyang Technological University, Singapore, and a certification in computational finance from Tepper Business School, Carnegie Mellon University.
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Shane Holloway
Shane Holloway
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Shane Holloway

http://shaneholloway.com/resume/
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Memory layout of ndarray


A particularly interesting attribute of the ndarray object is flags. Type the following code:

In [12]: x.flags 

It should produce something like this:

Out[12]: 
  C_CONTIGUOUS : True 
  F_CONTIGUOUS : False 
  OWNDATA : True 
  WRITEABLE : True 
  ALIGNED : True 
  UPDATEIFCOPY : False 

The flags attribute holds information about the memory layout of the array. The C_CONTIGUOUS field in the output indicates whether the array was a C-style array. This means that the indexing of this array is done like a C array. This is also called row-major indexing in the case of 2D arrays. This means that, when moving through the array, the row index is incremented first, and then the column index is incremented. In the case of a multidimensional C-style array, the last dimension is incremented first, followed by the last but one, and so on.

Similarly, the F_CONTIGUOUS attribute indicates whether the array is a Fortran-style array. Such an array...

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NumPy Essentials
Published in: Apr 2016Publisher: ISBN-13: 9781784393670

Authors (3)

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Leo (Liang-Huan) Chin

Leo (Liang-Huan) Chin is a data engineer with more than 5 years of experience in the field of Python. He works for Gogoro smart scooter, Taiwan, where his job entails discovering new and interesting biking patterns . His previous work experience includes ESRI, California, USA, which focused on spatial-temporal data mining. He loves data, analytics, and the stories behind data and analytics. He received an MA degree of GIS in geography from State University of New York, Buffalo. When Leo isn't glued to a computer screen, he spends time on photography, traveling, and exploring some awesome restaurants across the world. You can reach Leo at http://chinleock.github.io/portfolio/.
Read more about Leo (Liang-Huan) Chin

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Tanmay Dutta

Tanmay Dutta is a seasoned programmer with expertise in programming languages such as Python, Erlang, C++, Haskell, and F#. He has extensive experience in developing numerical libraries and frameworks for investment banking businesses. He was also instrumental in the design and development of a risk framework in Python (pandas, NumPy, and Django) for a wealth fund in Singapore. Tanmay has a master's degree in financial engineering from Nanyang Technological University, Singapore, and a certification in computational finance from Tepper Business School, Carnegie Mellon University.
Read more about Tanmay Dutta

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Shane Holloway

http://shaneholloway.com/resume/
Read more about Shane Holloway