plt.plot 分散 plot output 问题

Question

After running this block of code, I am getting 'Conversion Error' message:

    import matplotlib.pyplot as plt
    plt.figure(figsize=(12.2, 4.5))
    plt.title('Buy and Sell Plot', fontsize = 18)
    plt.plot(df['Close'], label = 'Close Price', color = 'blue', 
     alpha = 0.35)
    plt.plot(ShortEMA, label = 'Short/Fast EMA', color = 'red', 
    alpha = 0.35)
    plt.plot(MiddleEMA, label = 'Middle/Medium EMA', color = 
    'orange', alpha = 0.35)
    plt.plot(LongEMA, label = 'Long/Slow EMA', color = 'green', 
    alpha = 0.35)
    plt.scatter(df.index, df['Buy'], color = 'green', 
    marker='^', alpha = 1)
    plt.scatter(df.index, df['Sell'], color = 'red', marker='v', 
    alpha = 1)
    plt.xlabel('Date', fontsize = 18)
    plt.ylabel('Close Price', fontsize = 18)
    plt.show()

Any insight would be most appreciated

Answer 1

This is probably happening due to the " plt.scatter(df.index, (...)" part. If you run type(df.index) you'll see it's a pandas.core.indexes.range.RangeIndex , not an array. Try running it with np.asarray(auc_df.index) instead, hope it'll fix the issue!