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numpy.round_() in Python
The numpy.round_() is a mathematical function that rounds an array to the given number of decimals.
Syntax : numpy.round_(arr, decimals = 0, out = None)
Parameters :
array : [array_like] Input array.
decimal : [int, optional] Decimal places we want to round off.Default = 0. In case of -ve decimal, it specifies the n0. of positions to the left of the decimal point.
out : [optional] Output resulted array
Return :
An array with all array elements being rounded off, having same type as input.
Code #1 : Working
# Python program explaining# round_() functionimport numpy as np in_array = [.5, 1.5, 2.5, 3.5, 4.5, 10.1]print ("Input array : \n", in_array) round_off_values = np.round_(in_array)print ("\nRounded values : \n", round_off_values) in_array = [.53, 1.54, .71]print ("\nInput array : \n", in_array) round_off_values = np.round_(in_array)print ("\nRounded values : \n", round_off_values) in_array = [.5538, 1.33354, .71445]print ("\nInput array : \n", in_array) round_off_values = np.round_(in_array, decimals = 3)print ("\nRounded values : \n", round_off_values) |
Output :
Input array : [0.5, 1.5, 2.5, 3.5, 4.5, 10.1] Rounded values : [ 0. 2. 2. 4. 4. 10.] Input array : [0.53, 1.54, 0.71] Rounded values : [ 1. 2. 1.] Input array : [0.5538, 1.33354, 0.71445] Rounded values : [ 0.554 1.334 0.714]
Code #2 : Working
# Python program explaining# round_() functionimport numpy as np in_array = [1, 4, 7, 9, 12]print ("Input array : \n", in_array) round_off_values = np.round_(in_array)print ("\nRounded values : \n", round_off_values) in_array = [133, 344, 437, 449, 12]print ("\nInput array : \n", in_array) round_off_values = np.round_(in_array, decimals = -2)print ("\nRounded values upto 2: \n", round_off_values) in_array = [133, 344, 437, 449, 12]print ("\nInput array : \n", in_array) round_off_values = np.round_(in_array, decimals = -3)print ("\nRounded values upto 3: \n", round_off_values) |
Output :
Input array : [1, 4, 7, 9, 12] Rounded values : [ 1 4 7 9 12] Input array : [133, 344, 437, 449, 12] Rounded values upto 2: [100 300 400 400 0] Input array : [133, 344, 437, 449, 12] Rounded values upto 3: [0 0 0 0 0]
References : https://docs.scipy.org/doc/numpy-dev/reference/generated/numpy.round_.html#numpy.round_
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