Python. Here are some advanced things I like to do with pandas DataFrames to take my analysis to the next level. Change the ...

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# 菜品数据ETL示例 import pandas as pd menu_data = pd.read_excel (" 菜单.xlsx") menu_data ["推荐权重"] = menu_data ["销量"]*0.6 + menu_data ["毛利"]*0.4 设备功能成本扫码点餐平板顾客自助浏览推荐菜品¥299/台厨房显示屏实时接收智能订单¥1,200/台 ...

事件发生后未来5日沪深300指数（代指大盘）平均涨幅0.7%左右，上涨概率也都大于55%，最多能到60%+ 通过数据就能统计出北向资金单日净流入大于0的天数，观察大盘次日表现：上涨概率55%，平均涨幅0.15%。 当然单凭统计结果是无法形成明确的买点 ...

David Kindness is a Certified Public Accountant (CPA) and an expert in the fields of financial accounting, corporate and individual tax planning and preparation, and investing and retirement planning.

Logical relationships are based on principles of reasoning and inference. Determining the correct logical relationship involves evaluating the validity of arguments and identifying fallacies.