numpy.asfarray()function is used when we want to convert input to a float type array. Input includes scalar, lists, lists of tuples, tuples, tuples of tuples, tuples of lists and ndarrays.
Syntax : numpy.asfarray(arr, dtype=type ‘numpy.float64’)
arr : [array_like] Input data, in any form that can be converted to an float type array. This includes scalar, lists, lists of tuples, tuples, tuples of tuples, tuples of lists and ndarrays.
dtype : Float type code to coerce input array arr. If dtype is one of the ‘int’ dtypes, it is replaced with float64.
Return : [ndarray] The input arr as a float ndarray.
Code #1 : List to float type array
Input list : [1, 3, 5, 7, 9] output float type array from input list : [ 1. 3. 5. 7. 9.]
Code #2 : Tuple to float type array
Input touple : ([1, 3, 9], [8, 2, 6]) output float type array from input touple : [[ 1. 3. 9.] [ 8. 2. 6.]]
Code #3 : Scalar to float type array
InInput scalar : 15 output float type array from input scalar : 15.0
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