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  [Jupyter Notebook] ValueError: Cannot set a DataFrame with multiple columns to the single column ma2 먼저 제목의 오류 발생하기 전 코드와 결과이다. from pandas_datareader import data as pdr import yfinance as yf yf.pdr_override() import numpy as np import pandas as pd import FinanceDataReader as fdr df = fdr.DataReader('005930', '2018') df = df[['Close']].copy() df['ma1'] = df.rolling(3).mean().shift(1) df 제목의 오류가 발생한 코드이다. 1 from pandas_datareader import data as pdr 2 3 import yfinance as yf 4 yf.pdr_override() 5.. Python 2022. 11. 28.