找出 Python 中类数组的最小数据类型
numpy.min_scalar() 方法找出最小数据类型。第一个参数是要找出其最小数据类型的值。对于标量,返回具有最小大小和最小标量类型的可以保存其值的数据类型。对于非标量数组,返回未修改的矢量数据类型。浮点值不会降级为整数,复数不会降级为浮点数。
步骤
首先,导入所需库 −
import numpy as np
numpy.min_scalar() 方法找出最小数据类型。第一个参数是要找出其最小数据类型的值 −
print("Using the min_scalar() method in Numpy\n")
print("Result...",np.min_scalar_type(np.arange(4,dtype='f8')))
print("Result...",np.min_scalar_type(np.arange(38.9, dtype = 'f8')))
print("Result...",np.min_scalar_type(np.array(6.5e100, np.float64)))
print("Result...",np.min_scalar_type(np.array(280, 'i1')))
print("Result...",np.min_scalar_type(np.array(80, 'u1')))
print("Result...",np.min_scalar_type(np.array(300.7, np.float32)))
print("Result...",np.min_scalar_type(np.array(120.6, np.float64)))
print("Result...",np.min_scalar_type(np.array(7.2e100, np.float32)))
print("Result...",np.min_scalar_type(np.array(6.5e100, np.float64)))示例
import numpy as np
# The numpy.min_scalar() method finds the minimal data type.
# The 1st parameter is the value whose minimal data type is to be found.
print("Using the min_scalar() method in Numpy\n")
print("Result...",np.min_scalar_type(np.arange(4,dtype='f8')))
print("Result...",np.min_scalar_type(np.arange(38.9, dtype = 'f8')))
print("Result...",np.min_scalar_type(np.array(6.5e100, np.float64)))
print("Result...",np.min_scalar_type(np.array(280, 'i1')))
print("Result...",np.min_scalar_type(np.array(80, 'u1')))
print("Result...",np.min_scalar_type(np.array(300.7, np.float32)))
print("Result...",np.min_scalar_type(np.array(120.6, np.float64)))
print("Result...",np.min_scalar_type(np.array(7.2e100, np.float32)))
print("Result...",np.min_scalar_type(np.array(6.5e100, np.float64)))输出
Using the min_scalar() method in Numpy Result... float64 Result... float64 Result... float64 Result... uint8 Result... uint8 Result... float16 Result... float16 Result... float16 Result... float64
广告
数据结构
网络
RDBMS
操作系统
Java
iOS
HTML
CSS
Android
Python
C 编程
C++
C#
MongoDB
MySQL
Javascript
PHP