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time-series-and-categorical-analysis

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对时间序列或分类数据进行多维度趋势分析、百分比清洗、绩效分级建模与预测，并生成高分辨率的可视化综合报告，适用于业务指标监控与预测场景。

skills/sn-da-excel-workflow/capability/excel-data-analysis/time-series-analysis/SKILL.md

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Nov 9, 2026

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Nov 3, 2026
License
MIT

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## Skill Steps

Step1 加载并检查原始数据，配置中文字体以确保图表正常显示。
```python
import pandas as pd
import numpy as np
import matplotlib.pyplot as plt
import seaborn as sns
import warnings
warnings.filterwarnings('ignore')

# 设置中文字体，兼容不同操作系统
plt.rcParams['font.sans-serif'] = ['SimHei', 'WenQuanYi Zen Hei', 'DejaVu Sans']
plt.rcParams['axes.unicode_minus'] = False
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