在Python中繪製蠟燭棒

Question

我想繪製一個蠟燭棒圖在python中。這裏是我的代碼

from pandas_datareader import data as pdr 
import plotly.plotly as py 
import plotly.graph_objs as go 
import fix_yahoo_finance as yf 

yf.pdr_override() 
mcd = pdr.get_data_yahoo("MCD", start="2004-01-01", end="2005-07-31") 
mcd_candle = go.Candlestick(x=mcd.index,open=mcd.Open,high=mcd.High,low=mcd.Low,close=mcd.Close) 
data = [mcd_candle] 
py.iplot(data, filename='Candle Stick') 

這是錯誤我得到

PlotlyError: Because you didn't supply a 'file_id' in the call, we're assuming you're trying to snag a figure from a url. You supplied the url, '', we expected it to start with 'https://plot.ly'. 

任何想法，我怎麼能畫K線？

Answer 1

問題必須是因爲您沒有提供username和api key，您將從https://plot.ly/settings/api鏈接中獲得。如果您想使用plotly online創建此圖表。首先創建一個帳戶，然後獲取username和api key並將其插入到下面的代碼中。

from pandas_datareader import data as pdr 
import plotly.plotly as py 
import plotly.graph_objs as go 
import fix_yahoo_finance as yf 
py.sign_in('<<username here>>', '<<api key here>>') 
yf.pdr_override() 
mcd = pdr.get_data_yahoo("MCD", start="2004-01-01", end="2005-07-31") 
mcd_candle = go.Candlestick(x=mcd.index,open=mcd.Open,high=mcd.High,low=mcd.Low,close=mcd.Close) 
data = [mcd_candle] 
py.iplot(data, filename='Candle Stick') 

有使用plotly offline，並不需要所有這些程序的另一種選擇，請看下面的實現代碼。

from pandas_datareader import data as pdr 
import plotly.offline as py_offline 
import plotly.graph_objs as go 
import fix_yahoo_finance as yf 
py_offline.init_notebook_mode() 

yf.pdr_override() 
mcd = pdr.get_data_yahoo("MCD", start="2004-01-01", end="2005-07-31") 
mcd_candle = go.Candlestick(x=mcd.index,open=mcd.Open,high=mcd.High,low=mcd.Low,close=mcd.Close) 
data = [mcd_candle] 
py_offline.iplot(data, filename='Candle Stick') 
#for Spyder plotting use the below line instead 
#py_offline.plot(data, filename='Candle Stick') 

請務必安裝pandas_datareader和fix_yahoo_finance使用pip庫，如果這些庫不存在！