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pythonarraysnumpy
Femkemilene
Femkemilene

Reputation: 305

What does the array flags attribute tell?

In a programming quiz I came accross the flags attribute for numpy arrays in Python and I was wondering was the output all means. After reading https://docs.scipy.org/doc/numpy/reference/generated/numpy.ndarray.flags.html, I don't really understand some of the output. What do C_CONTIGUOUS, F_CONTIGUOUS, ALIGNED and UPDATEIFCOPY mean, explained without as much jargon as the documentation?

import numpy as np
x=np.array([[3,4],[3,5]])
print(x.flags)

which outputs the following:

  C_CONTIGUOUS : True
  F_CONTIGUOUS : False
  OWNDATA : True
  WRITEABLE : True
  ALIGNED : True
  UPDATEIFCOPY : False

Upvotes: 2

Views: 5776

Answers (1)

tupui
tupui

Reputation: 6528

It gives information about how the array is stored in memory.

C_CONTIGUOUS true means it is stored as c-type in memory.

See the documentation for more on each attribute.

Upvotes: 1

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