在CentOS上进行Python数据分析,可按以下步骤操作:
安装Python及工具
wget https://repo.anaconda.com/archive/Anaconda3-2024.05-Linux-x86_64.sh
bash Anaconda3-2024.05-Linux-x86_64.sh
source ~/.bashrc # 激活环境
或直接安装Python 3及pip:sudo yum install python3 python3-pip
配置虚拟环境
conda create -n myenv python=3.8 # 创建虚拟环境
conda activate myenv # 激活环境
安装数据分析库
pip install pandas numpy matplotlib seaborn scikit-learn
数据获取与预处理
import pandas as pd
data = pd.read_csv('data.csv') # 或通过SQL连接数据库
# 处理缺失值
data.fillna(0, inplace=True)
数据分析与建模
print(data.describe())
from sklearn.model_selection import train_test_split
from sklearn.linear_model import LinearRegression
X = data[['feature1', 'feature2']]
y = data['target']
X_train, X_test, y_train, y_test = train_test_split(X, y, test_size=0.2)
model = LinearRegression().fit(X_train, y_train)
数据可视化
import matplotlib.pyplot as plt
import seaborn as sns
# 绘制柱状图
sns.barplot(x='category', y='value', data=data)
plt.title('数据分析结果')
plt.show()
可选:使用Jupyter Notebook
pip install notebook
jupyter notebook # 启动交互式环境
说明:
pymysql
),具体可参考库文档。