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# Creating a copy of a NumPy array

schedule Aug 12, 2023
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To create a copy of a Numpy array, use its `copy()` method.

Suppose we have the following Numpy array:

``` x = np.array([1,2,3])x array([1, 2, 3]) ```

We can create a copy of `x` using the `copy()` method, like so:

``` y = x.copy()y array([1, 2, 3]) ```

Making modifications to `y` would have no impact on `x`. To demonstrate:

``` y[0] = 4y array([4, 2, 3]) ```

Here, we've modified the first value of `y`. When we print `x`, we see the following output:

``` x array([1, 2, 3]) ```

We see that `x` has not been modified.

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