numpy.isfinite() in Python
The numpy.isfinite() function tests element-wise whether it is finite or not(not infinity or not Not a Number) and return the result as a boolean array.
Syntax :
numpy.isfinite(array [, out])
Parameters :
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array : [array_like]Input array or object whose elements,
we need to test for infinity
out : [ndarray, optional]Output array placed with result.
Its type is preserved and it must be of the right
shape to hold the output.
Return :
boolean array containing the result
Code 1 :
# Python Program illustrating# numpy.isfinite() method import numpy as geek print("Finite : ", geek.isfinite(1), "\n") print("Finite : ", geek.isfinite(0), "\n") # not a numberprint("Finite : ", geek.isfinite(geek.nan), "\n") # infinityprint("Finite : ", geek.isfinite(geek.inf), "\n") print("Finite : ", geek.isfinite(geek.NINF), "\n") |
Output :
Finite : True Finite : True Finite : False Finite : False Finite : False
Code 2 :
# Python Program illustrating# numpy.isfinite() method import numpy as geek # Returns True/False value for each element b = geek.arange(20).reshape(5, 4) print("\n",b)print("\nIs Finite : \n", geek.isfinite(b)) b = [[1j], [geek.inf]]print("\nIs Finite : \n", geek.isfinite(b)) |
Output :
[[ 0 1 2 3] [ 4 5 6 7] [ 8 9 10 11] [12 13 14 15] [16 17 18 19]] Is Finite : [[ True True True True] [ True True True True] [ True True True True] [ True True True True] [ True True True True]] Is Finite : [[ True] [False]]
References :
https://docs.scipy.org/doc/numpy-dev/reference/generated/numpy.isfinite.html
Note :
These codes won’t run on online-ID. Please run them on your systems to explore the working.
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