删除 1.py

This commit is contained in:
ljy 2025-06-13 10:53:45 +08:00
parent bd9bc1998f
commit 03e49a79d1

98
1.py
View File

@ -1,98 +0,0 @@
import numpy as np
import pandas as pd
import matplotlib.pyplot as plt
from datetime import datetime
from algorithms import detect_outliers_3sigma, detect_outliers_iqr, detect_outliers_grubbs, detect_outliers_gesd
class OutlierDetector:
def __init__(self):
self.data = None
self.results = None
self.current_method = None
def load_data(self, file_path):
"""加载时间序列数据"""
try:
self.data = pd.read_csv(file_path, parse_dates=['timestamp'])
self.data.set_index('timestamp', inplace=True)
return True, "数据加载成功"
except Exception as e:
return False, f"数据加载失败: {str(e)}"
def detect_outliers(self, method, column, **kwargs):
"""使用指定方法检测离群点"""
if self.data is None:
return False, "请先加载数据"
if column not in self.data.columns:
return False, f"'{column}'不存在"
series = self.data[column].dropna()
if len(series) == 0:
return False, "所选列没有有效数据"
self.current_method = method
try:
if method == '3sigma':
results = detect_outliers_3sigma(series, **kwargs)
elif method == 'iqr':
results = detect_outliers_iqr(series, **kwargs)
elif method == 'grubbs':
results = detect_outliers_grubbs(series, **kwargs)
elif method == 'gesd':
results = detect_outliers_gesd(series, **kwargs)
else:
return False, "不支持的检测方法"
self.results = results
return True, "离群点检测成功"
except Exception as e:
return False, f"离群点检测失败: {str(e)}"
def get_detection_results(self):
"""获取检测结果"""
if self.results is None:
return None
return {
'method': self.current_method,
'series_name': self.results['series_name'],
'upper_bound': self.results['upper_bound'],
'lower_bound': self.results['lower_bound'],
'mean': self.results['mean'],
'outliers': self.results['outliers'],
'outlier_indices': self.results['outlier_indices']
}
def plot_results(self):
"""绘制检测结果"""
if self.results is None:
return False, "没有可用的检测结果"
plt.figure(figsize=(12, 6))
# 绘制原始数据
plt.plot(self.results['series'], 'b-', label='原始数据')
# 绘制均值线
plt.axhline(self.results['mean'], color='g', linestyle='--', label='均值')
# 绘制边界线
plt.axhline(self.results['upper_bound'], color='r', linestyle='--', label='上边界')
if 'lower_bound' in self.results:
plt.axhline(self.results['lower_bound'], color='r', linestyle='--', label='下边界')
# 标记离群点
outlier_dates = self.results['series'].index[self.results['outlier_indices']]
outlier_values = self.results['series'].iloc[self.results['outlier_indices']]
plt.plot(outlier_dates, outlier_values, 'ro', markersize=8, label='离群点')
plt.title(f"离群点检测 - {self.current_method.upper()}方法")
plt.xlabel('时间')
plt.ylabel('数值')
plt.legend()
plt.grid(True)
plt.tight_layout()
return True, plt