numpy.asarray()

This function is used to create an array by using the existing data in the form of lists, or tuples. This function is useful in the scenario where we need to convert a python sequence into the numpy array object.

Syntax

snippet
numpy.asarray(sequence,  dtype = None, order = None)

Parameters

It accepts the following parameters.

  1. shape: It is the Tuple defining the shape of the matrix.
  2. dtype: It is the data type each item of the array
  3. order: It is the insertion order of the array. The default is C.

Return

An array with the equivalent values to the sequence is returned.

Example

snippet
import numpy as np

l=[1,2,3,4,5,6,7]

a = np.asarray(l);

print(type(a))

print(a)

Output:

Output
[1 2 3 4 5 6 7]

Example: Creating a numpy array from the Tuple

snippet
import numpy as np
l=(1,2,3,4,5,6,7)   
a = np.asarray(l);
print(type(a))
print(a)

Output:

Output
[1 2 3 4 5 6 7]

Example: creating a numpy array using more than one list

snippet
import numpy as np
l=[[1,2,3,4,5,6,7],[8,9]]
a = np.asarray(l);
print(type(a))
print(a)

Output:

Output
[list([1, 2, 3, 4, 5, 6, 7]) list([8, 9])]
Related Tutorial
1 numpy.array() in Python
2 numpy.concatenate() in Python
3 numpy.append() in Python
4 numpy.reshape() in Python
5 numpy.sum() in Python
6 numpy.random() in Python
7 numpy.zeros() in Python
8 numpy.log() in Python
9 numpy.where() in Python
10 numpy.argsort() in Python
11 numpy.transpose() in Python
12 numpy.mean() in Python
13 numpy.unique() in Python
14 numpy.ndarray.tolist() in Python
15 numpy.dot() in Python
16 numpy.loadtxt() in Python
17 numpy.clip() in Python
18 numpy.ndarray.flatten() in Python
19 numpy.meshgrid() in Python
20 numpy standard deviation
21 numpy.argmax in Python
22 numpy.diff() in Python
23 numpy.empty() in Python
24 numpy.histogram() in Python
25 numpy.sort in Python
26 numpy.average() in Python
27 numpy.pad() in Python
28 numpy.ravel() in Python
29 numpy.save() in Python
30 Numpy arccos() method
31 Numpy arcsin() method
32 Numpy arctan() method
33 Numpy degrees() method
34 Numpy tan() method
35 Numpy deg2rad() method
36 Numpy hypot() method
37 Numpy rad2deg() method
38 Numpy radians() method
39 Numpy arcsinh()
40 Numpy arctanh()
41 Numpy ceil()
42 Numpy fix()
43 Numpy floor()
44 Numpy rint()
45 Numpy tanh()
46 Numpy trunc()
47 numpy.matlib.empty()
48 numpy.matlib.eye()
49 numpy.matlib.identity()
50 numpy.matlib.ones()
51 numpy.matlib.zeros()
52 numpy.arrange()
53 numpy.asarray()

54 numpy.frombuffer()
55 numpy.fromiter()
56 numpy.linspace()
57 numpy.logspace()
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