Matplotlib Ichimoku sample

Matplotlib Ichimoku

def Ichimoku(df):
    df1 = df.copy()
    max_9 = df1.high.rolling(window=9).max()
    min_9 = df1.high.rolling(window=9).min()
    df1["tenkan"] = (max_9+min_9)/2
    df1["base"] = (df1.high.rolling(window=26).max()+df1.high.rolling(window=26).min())/2
    xdate = [x.date() for x in df1.index]
    plt.figure(figsize=(15,5))    
    plt.grid()
    plt.plot(xdate, df1.close, color="b", lw=1, linestyle="dotted", label="original")
    plt.plot(xdate, df1.tenkan, label="Conversion line")
    plt.plot(xdate, df1.base, label="Base line")
    senkou1 = ((df1.tenkan+df1.base)/2).iloc[:-26]
    senkou2 = ((df1.high.rolling(window=52).max()+df1.high.rolling(window=52).min())/2).iloc[:-26]
    plt.fill_between(xdate[26:], senkou1, senkou2, color="blue", alpha=0.2, label="Cloud")
    plt.legend(loc=4)
    plt.xlim(xdate[0], xdate[-1])

Ichimoku(df)