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numpyの地味に知らなかった便利機能

Python
numpy

Posted at 2019-03-31

今まで地味に知らなかったnumpyの便利な機能があったらメモっとく備忘録。
無知の知。。。

cumsum()

numpy配列を足し込んでいく。

>>> numpy_numbers = np.arange(10)
>>> numpy_numbers.cumsum()
array([ 0,  1,  3,  6, 10, 15, 21, 28, 36, 45])
>>> np.cumsum(numpy_numbers)
array([ 0,  1,  3,  6, 10, 15, 21, 28, 36, 45])

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