Python (numpy): drop columns by index

Question

I've got a numpy array and would like to remove some columns based on index. Is there an in-built function for it or some elegant way for such an operation?

Something like:

arr = [234, 235, 23, 6, 3, 6, 23]
elim = [3, 5, 6]

arr = arr.drop[elim]

output: [234, 235, 23, 3]

HYRY · Accepted Answer · 2013-03-01 03:19:23Z

11

use numpy.delete, it will return a new array:

import numpy as np
arr = np.array([234, 235, 23, 6, 3, 6, 23])
elim = [3, 5, 6]
np.delete(arr, elim)

answered Mar 1, 2013 at 3:19

HYRY

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