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# NumPy | sign method

schedule Aug 11, 2023
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NumPy's `sign(~)` method returns the sign of each value in the input array:

• `1` corresponds to positive values

• `0` corresponds to zero

• `-1` corresponds to negative values

# Parameters

1. `x` | `array-like`

The source NumPy array.

# Return value

A NumPy array of integers.

# Examples

Suppose we have the following NumPy array:

``` x = np.array([[0,1], [2,-3]])x array([[0, 1], [2, -3]]) ```

Applying the `sign(~)` method gives:

``` np.sign(x) array([[0, 1], [1, -1]]) ```
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