numpy.asarray()function is used when we want to convert input to an array. Input can be lists, lists of tuples, tuples, tuples of tuples, tuples of lists and arrays.
Syntax : numpy.asarray(arr, dtype=None, order=None)
Parameters :
arr : [array_like] Input data, in any form that can be converted to an array. This includes lists, lists of tuples, tuples, tuples of tuples, tuples of lists and ndarrays.
dtype : [data-type, optional] By default, the data-type is inferred from the input data.
order : Whether to use row-major (C-style) or column-major (Fortran-style) memory representation. Defaults to ‘C’.Return : [ndarray] Array interpretation of arr. No copy is performed if the input is already ndarray with matching dtype and order. If arr is a subclass of ndarray, a base class ndarray is returned.
Code #1 : List to array
# Python program explaining# numpy.asarray() function import numpy as geekmy_list = [1, 3, 5, 7, 9] print ("Input list : ", my_list) out_arr = geek.asarray(my_list)print ("output array from input list : ", out_arr) |
Output :
Input list : [1, 3, 5, 7, 9] output array from input list : [1 3 5 7 9]
Code #2 : Tuple to array
# Python program explaining# numpy.asarray() function import numpy as geek my_tuple = ([1, 3, 9], [8, 2, 6]) print ("Input tuple : ", my_tuple) out_arr = geek.asarray(my_tuple) print ("output array from input tuple : ", out_arr) |
Output :
Input tuple : ([1, 3, 9], [8, 2, 6]) output array from input tuple : [[1 3 9] [8 2 6]]
