Python中的 numpy.floor()
numpy.floor)是一个数学函数,它返回数组元素的下限。标量 x 的下限是最大整数 i,使得 i <= x。
Syntax : numpy.floor(x[, out]) = ufunc ‘floor’)
Parameters :
a : [array_like] Input array
Return : The floor of each element.
代码#1:工作
# Python program explaining
# floor() function
import numpy as np
in_array = [.5, 1.5, 2.5, 3.5, 4.5, 10.1]
print ("Input array : \n", in_array)
flooroff_values = np.floor(in_array)
print ("\nRounded values : \n", flooroff_values)
in_array = [.53, 1.54, .71]
print ("\nInput array : \n", in_array)
flooroff_values = np.floor(in_array)
print ("\nRounded values : \n", flooroff_values)
in_array = [.5538, 1.33354, .71445]
print ("\nInput array : \n", in_array)
flooroff_values = np.floor(in_array)
print ("\nRounded values : \n", flooroff_values)
输出 :
Input array :
[0.5, 1.5, 2.5, 3.5, 4.5, 10.1]
Rounded values :
[ 0. 1. 2. 3. 4. 10.]
Input array :
[0.53, 1.54, 0.71]
Rounded values :
[ 0. 1. 0.]
Input array :
[0.5538, 1.33354, 0.71445]
Rounded values :
[ 0. 1. 0.]
代码 #2:工作
# Python program explaining
# floor() function
import numpy as np
in_array = [1.67, 4.5, 7, 9, 12]
print ("Input array : \n", in_array)
flooroff_values = np.floor(in_array)
print ("\nRounded values : \n", flooroff_values)
in_array = [133.000, 344.54, 437.56, 44.9, 1.2]
print ("\nInput array : \n", in_array)
flooroff_values = np.floor(in_array)
print ("\nRounded values upto 2: \n", flooroff_values)
输出 :
Input array :
[1.67, 4.5, 7, 9, 12]
Rounded values :
[ 1. 4. 7. 9. 12.]
Input array :
[133.0, 344.54, 437.56, 44.9, 1.2]
Rounded values upto 2:
[ 133. 344. 437. 44. 1.]
参考资料: https://docs.scipy.org/doc/numpy-dev/reference/generated/numpy.floor.html#numpy.floor
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