How do I slice arrays in NumPy?

How do I slice arrays in NumPy?

You can slice arrays in NumPy using the syntax array[start:stop:step]. For example, array[1:5] will give you elements from index 1 to 4.

Can you give me an example with a 2D array?

Sure! For a 2D array, you can slice like this: array[1:3, 0:2] will give you rows 1 to 2 and columns 0 to 1.

What if I want to slice all rows but only specific columns?

You can use a colon for all rows. For example, array[:, [0, 2]] will give you all rows but only the 1st and 3rd columns.

Is there a way to reverse an array using slicing?

Yes! You can reverse an array with slicing by using array[::-1], which will return the array in reverse order.