将当前代码应用于另一个数据帧

Posted 2023-03-12

【中文标题】将当前代码应用于另一个数据帧

【英文标题】：applying current code to another data frame

【发布时间】：2020-03-12 11:12:17

【问题描述】：

下面是我当前的代码，我如何将相同的代码应用到另一个数据框（导入另一个 excel 表并将下面的代码应用到它）

import pandas as pd
import numpy as np
book= pd.read_csv("book.csv")
book=book.dropna()
book.sort_values("Market Cap", ascending=False, inplace=True)
book = book.head(500)
book["EY"] = (book["Earnings Per Share LTM"] / book["Start Price"])
book["ROIC"] = (book["EBIT"]/ book["Invested Capital"])
book["Price Change"] =((book["Close Price"] - book["Start Price"]) / book["Start Price"])
book['EY Rank'] = book['EY'].rank(ascending=False)
book['ROIC rank'] = book['ROIC'].rank(ascending=False)

【参考方案1】：

您可以定义一个函数，并根据需要多次调用它：

import pandas as pd
import numpy as np

def some_func(file_name):
    book= pd.read_csv(file_name)
    book=book.dropna()
    book.sort_values("Market Cap", ascending=False, inplace=True)
    book = book.head(500)
    book["EY"] = (book["Earnings Per Share LTM"] / book["Start Price"])
    book["ROIC"] = (book["EBIT"]/ book["Invested Capital"])
    book["Price Change"] =((book["Close Price"] - book["Start Price"]) / book["Start Price"])
    book['EY Rank'] = book['EY'].rank(ascending=False)
    book['ROIC rank'] = book['ROIC'].rank(ascending=False)
    return book

file_name = "book.csv"
some_func(file_name)
file_name = "next_book.csv"
some_func(file_name)

这是你要找的吗？

【讨论】：

SSharma，谢谢你的回答，是的，这就是我要找的，但是当我应用并运行该函数时，我得到一个无效的语法（文件“” ，第 1 行 def some_func("book.csv") ^ SyntaxError: invalid syntax)

请在此处添加您的完整代码，以便我更好地帮助您。