from pandas import DataFrame
data = {'open': [100, 200], "high": [110, 210]} 
df = DataFrame(data ) 
print(df)
   open  high
0   100   110
1   200   210
from pandas import DataFrame
data = {"open": [737, 750], "high": [755, 780], "low": [700, 710], "close": [750, 770]} 
df = DataFrame(data , index=["2018-01-01", "2018-01-02"]) 
print(df)
            open  high  low  close
2018-01-01   737   755  700    750
2018-01-02   750   780  710    770
엑셀 읽기/쓰기
import pandas as pd 
# 읽기
df_r = pd.read_excel("C:\\ohlc.xlsx") 
print(df_r)
# 쓰기
df.to_excel("C:\\ohlc-2.xlsx")
from pandas import DataFrame
data = {"open": [730, 750], "high": [755, 780], "low": [700, 710], "close": [750, 770]} 
df = DataFrame(data , index=["2018-01-01", "2018-01-02"]) 
print(df['open'])
print(df.loc["2018-01-01"])
2018-01-01    730
2018-01-02    750
Name: open, dtype: int64
open     730
high     755
low      700
close    750
Name: 2018-01-01, dtype: int64
from pandas import DataFrame
data = {"open": [737, 750], "high": [755, 780], "low": [700, 710], "close": [750, 770]} 
df = DataFrame(data) 
s = Series([300, 400]) 
df['volume'] = s 
print(df)