how to write a numpy array to a file in python

Do you want to know the details about “how to write a numpy array to a file in python”. If yes, you’re in the correct tutorial.

how to write a numpy array to a file in python

numpy.savetxt(fname, X, fmt="%.18e", delimiter=" ", newline="\n", 
              header="", footer="", comments="# ", encoding=None)


x = y = z = np.arange(0.0,5.0,1.0)
np.savetxt('test.out', x, delimiter=",")   # X is an array
np.savetxt('test.out', (x,y,z))   # x,y,z equal sized 1D arrays
np.savetxt('test.out', x, fmt="%1.4e")   # use exponential notation

Final Thoughts

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Hi, I'm Ranjith a full-time Blogger, YouTuber, Affiliate Marketer, & founder of Coder Diksha. Here, I post about programming to help developers.

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