How can I save a in csv? Thank you all.
print(a)
['B17' 'B8' 'B19']
['B20' 'B16' 'B17']
['B27' 'B2' 'B3']
['B2' 'B22' 'B7']
['B30' 'B12' 'B28']
['B10' 'B8' 'B15']
<class 'numpy.ndarray'>
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a is coming from a loop, so only the last array is saved, how can i save all the array? – Aswin Oct 17 '19 at 13:02
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Use `np.vstack` to join the arrays into one multi-row array, and save that. – hpaulj Oct 17 '19 at 16:54
2 Answers
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Quick search on Stackoverflow provides an answer:
Dump a NumPy array into a csv file
Code pasted here, in case the link ever dies:
import numpy
a = numpy.asarray([ [1,2,3], [4,5,6], [7,8,9] ])
numpy.savetxt("foo.csv", a, delimiter=",")
The page also has useful alternate ways to convert it using pandas.
javapyscript
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You can use Pandas for this.
import pandas as pd
df = pd.DataFrame(a)
df.to_csv("file.csv")
Actually, nvm, numpy.savetxt is the way better.
Ilya Datskevich
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