Related Articles
numpy.ndarray.view() in Python
• Last Updated : 28 Dec, 2018

`numpy.ndarray.view()` helps to get a new view of array with the same data.

Syntax: ndarray.view(dtype=None, type=None)

Parameters:
dtype : Data-type descriptor of the returned view, e.g., float32 or int16. The default, None, results in the view having the same data-type as a.
type : Python type, optional

Returns : ndarray or matrix.

Code #1:

 `# Python program explaining   ` `# numpy.ndarray.view() function  ` ` `  `import` `numpy as geek ` ` `  `a ``=` `geek.arange(``10``, dtype ``=``'int16'``) ` ` `  `print``(``"a is: \n"``, a) ` ` `  `# using view() method ` `v ``=` `a.view(``'int32'``) ` `print``(``"\n After using view() with dtype = 'int32' a is : \n"``, a) ` ` `  `v ``+``=` `1` ` `  `# addition of 1 to each element of v ` `print``(``"\n After using view() with dtype = 'int32' and adding 1 a is : \n"``, a) `

Output:

```a is:
[0 1 2 3 4 5 6 7 8 9]

After using view() with dtype = 'int32' a is :
[0 1 2 3 4 5 6 7 8 9]

After using view() with dtype = 'int32' and adding 1 a is :
[1 1 3 3 5 5 7 7 9 9]
```

Code #2:

 `# Python program explaining   ` `# numpy.ndarray.view() function  ` ` `  `import` `numpy as geek ` ` `  `a ``=` `geek.arange(``10``, dtype ``=``'int16'``) ` `print``(``"a is:"``, a) ` ` `  `# Using view() method ` `v ``=` `a.view(``'int16'``) ` `print``(``"\n After using view() with dtype = 'int16' a is :\n"``, a) ` ` `  `v ``+``=` `1` `# addition of 1 to each element of v ` `print``(``"\n After using view() with dtype = 'int16' and adding 1 a is : \n"``, a) `

Output:

```a is: [0 1 2 3 4 5 6 7 8 9]

After using view() with dtype = 'int16' a is :
[0 1 2 3 4 5 6 7 8 9]

After using view() with dtype = 'int16' and adding 1 a is :
[ 1  2  3  4  5  6  7  8  9 10]
```

Code #3:

 `# Python program explaining   ` `# numpy.ndarray.view() function  ` ` `  `import` `numpy as geek ` ` `  `a ``=` `geek.arange(``10``, dtype ``=``'int16'``) ` `print``(``"a is: \n"``, a) ` ` `  `v ``=` `a.view(``'int8'``) ` `print``(``"\n After using view() with dtype = 'int8' a is : \n"``, a) ` ` `  `v ``+``=` `1` `# addition of 1 to each element of v ` `print``(``"\n Ater using view() with dtype = 'int8' and adding 1 a is : \n"``, a) `

Output:

```a is:
[0 1 2 3 4 5 6 7 8 9]

After using view() with dtype = 'int8' a is :
[0 1 2 3 4 5 6 7 8 9]

Ater using view() with dtype = 'int8' and adding 1 a is :
[257 258 259 260 261 262 263 264 265 266]
```

Attention geek! Strengthen your foundations with the Python Programming Foundation Course and learn the basics.

To begin with, your interview preparations Enhance your Data Structures concepts with the Python DS Course.

My Personal Notes arrow_drop_up
Recommended Articles
Page :