I’m stuck on a iteration problem.
I have a list of numbers, like: list = [100, 70, 25, 10, 5].
I would like to iterate over the list and generate a new array, such that each "result" becomes the new number from which the next is subtracted:
100-70 = 30
30 (result) – 25 = 5
5 (result) – 10 = -5
-5 (result) – 5 = -10
(I think you get the idea)
new_array = [30, 5, -5, -10]
I am not able to arrive at the solution with Numpy.
Any help is appreciated!
Thank you!
>Solution :
You can use the subtract ufunc with numpy.ufunc.accumulate.
numbers = [100, 70, 25, 10, 5]
result = np.subtract.accumulate(numbers)[1:]
print(result)
Output:
[ 30 5 -5 -10]