NumPhp::zeros_like

Construct a new array of zeros with the same shape and type as a given array.

Description

SciPhp\NdArray NumPhp::zeros_like( array|NdArray $array )

Parameters

$array
An array [1, 2, 3] or a NdArray.

Return Values

The new SciPhp\NdArray

Examples

Example #1: Constructing an array of zeros with array as input

use SciPhp\NumPhp as np;

$x = np::zeros_like(
  [[2, 2],
   [2, 2]]
);

echo $x;

The above example will output: 

[[0  0]
 [0  0]]

Example #2: Constructing an array of zeros with N-dim array as input

use SciPhp\NumPhp as np;

// 3-D array 
$input = np::linspace(1, 8, 8)->reshape(2, 2, 2);

$x = np::zeros_like($input);

echo "
Input:
$input
Output:
$x
";

The above example will output: 

Input:
[[[1  2]
  [3  4]]
 [[5  6]
  [7  8]]]

Output:
[[[0  0]
  [0  0]]
 [[0  0]
  [0  0]]]

See Also

zeros