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 why is the ticker and date different
Here is my early attempts in using python. i am getting stock data from yahoo but i can see that the ticker, date column headers are lower than the high low open close.
I am definitely missing something.
what is it?
import pandas as pd
import numpy as np
import datetime
import pandas_datareader as pdr


# we download the stock prices for each ticker and then we do a mapping between data and name of the ticker
def get(tickers, startdate, enddate):
  def data(ticker):
    return (pdr.get_data_yahoo(ticker, start=startdate, end=enddate))
  datas = map (data, tickers)
  return(pd.concat(datas, keys=tickers, names=['ticker', 'date']))

# Define the stocks to download. We'll download of Apple, Microsoft and the S&P500 index.
tickers = ['AAPL','IBM']

# We would like all available data from 01/01/2000 until 31/12/2018.
start_date = datetime.datetime(2016, 1, 1)
end_date = datetime.datetime(2019, 12, 31)

all_data = get(tickers, start_date, end_date)
Reset index.
all_data = all_data.reset_index()
Try not to use nested functions,it's makes the code harder to read and debug.
There are use cases for it,but i don't see the need here.

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