Splitting array into multiple ones

Question

I'd like to split my array into multiple ones: The original array looks as follows:

array([[228.6311346 , 228.6311346 , 228.6311346 ],
       [418.57914851,   0.        , 228.321311  ],
       [416.83133465,   0.        , 723.25171282]])

The resulting arrays should look like this:

array1([228.6311346, 418.57914851, 416.83133465])
array2([228.6311346, 0., 0.])
array3([228.6311346, 228.321311, 723.25171282])

Hmm would you like them to be printed or to be assigned to a variable? — The shape, Jun 08 '21 at 19:16
https://numpy.org/doc/stable/reference/generated/numpy.hsplit.html `np.hsplit(x,3)` — Chris, Jun 08 '21 at 19:17
These are numpy arrays? You can use `array1 = array[0,:]` and `array2 = array[1,:]`, etc. — Tim Roberts, Jun 08 '21 at 19:17
Does this answer your question? [How to access the ith column of a NumPy multidimensional array?](https://stackoverflow.com/questions/4455076/how-to-access-the-ith-column-of-a-numpy-multidimensional-array) — mkrieger1, Jun 08 '21 at 19:17
@Theshape As I have to do calculations later on, I think assigned to a variable. — Marco, Jun 08 '21 at 19:18

score 1 · Answer 1 · answered Jun 08 '21 at 19:28

1

for i in range(len(array)):
    exec("array"+str(i+1)+"=array["+str(i)+"]")

It will create your variable dynamically and assign the corresponding value to it.

array = [[1],[2],[3]]
print(array0) // outputs [1] after running above code

You can also use numpy.hsplit Doc Here

numpy.hsplit(ary, indices_or_sections)
# Split an array into multiple sub-arrays of equal size.

answered Jun 08 '21 at 19:28

Saket Anand

45
1
10

`split`/`hsplit` is the correct answer. `exec` is a bad idea (despite the fact that it more closely matches OP's desired output). – 0x5453 Jun 08 '21 at 19:42

Splitting array into multiple ones

1 Answers1