Is there a head and tail method for Numpy array?

Question

I loaded a csv file into 'dataset' and tried to execute dataset.head(), but it reports an error. How to check the head or tail of a numpy array? without specifying specific lines?

Answer 1

For a head-like function you can just slice the array using dataset[:10].

For a tail-like function you can just slice the array using dataset[-10:].

Answer 2

You can do this for any python iterable.

PEP-3132 which is in python 3.x (https://www.python.org/dev/peps/pep-3132/) can use the * symbol for the 'rest' of the iterable.

To do what you want:

>>> import numpy as np >>> np.array((1,2,3)) array([1, 2, 3]) >>> head, *tail = np.array((1,2,3)) >>> head 1 >>> tail [2, 3]