El numpy.round_() es una función matemática que redondea una array al número dado de decimales.
Sintaxis: numpy.round_(arr, decimals = 0, out = None)
Parámetros:
array: [array_like] Array de entrada.
decimal: [int, opcional] Lugares decimales que queremos redondear.Predeterminado = 0. En caso de -ve decimal, especifica el n0. de posiciones a la izquierda del punto decimal.
out : [opcional] Array resultante de salida
Devolver :
An array with all array elements being rounded off, having same type as input.
Código #1: Trabajando
# Python program explaining
# round_() function
import 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)
Producción :
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]
Código #2: Trabajando
# Python program explaining
# round_() function
import 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)
Producción :
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]
Referencias: https://docs.scipy.org/doc/numpy-dev/reference/generated/numpy.round_.html#numpy.round_
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Artículo escrito por Mohit Gupta_OMG 🙂 y traducido por Barcelona Geeks. The original can be accessed here. Licence: CCBY-SA