将字典列表转换为numpy数组

import numpy as np

# 定义一个字典列表
data = [
    {'name': 'Alice', 'age': 25, 'gender': 'female'},
    {'name': 'Bob', 'age': 30, 'gender': 'male'},
    {'name': 'Charlie', 'age': 35, 'gender': 'male'}
]

# 提取特征名称
feature_names = list(data[0].keys())

# 提取特征值
feature_values = [list(d.values()) for d in data]

# 将特征值转换为numpy数组
array = np.array(feature_values)

# 打印结果
print("特征名称:", feature_names)
print("特征值数组:\n", array)

特征名称: ['name', 'age', 'gender']
特征值数组:
 [['Alice' '25' 'female']
 ['Bob' '30' 'male']
 ['Charlie' '35' 'male']]