如何使用Xlwing和Python在Excel中返回Matplot图表？

Question

I'm new to Python and Xlwings. I am trying to create a UDF to return a "BOX plot" in excel. Table in Excel has two columns "Sales_Region" and "Total Sales".

On running the below code, I am getting the error "Object required". I think the error is basically due to incorrect usage of decorators. Looking for help!

import seaborn as sns, numpy as np
import matplotlib.pyplot as plt
import xlwings as xw
import pandas as pd
from pandas import DataFrame



@xw.func
@xw.arg('df', pd.DataFrame, index = False, header=True)
@xw.arg('x_name', category = str)
@xw.arg('y_name', category = str)

def BOX_Plot(df,x_name,y_name):

    dt = pd.DataFrame(df)
    names = x_name
    bill =  y_name


    sns.set_style("whitegrid")
    ax = sns.boxplot(x=names, y=bill, data=dt)

    medians = dt.groupby([names])[bill].median().values
    median_labels = [str(np.round(s, 2)) for s in medians]

    pos = range(len(medians))
    for tick,label in zip(pos,ax.get_xticklabels()):
        ax.text(pos[tick], medians[tick], median_labels[tick], 
                horizontalalignment='center', size='x-small', color='w', weight='semibold')

    plt.show()

    return "Done!"

Answer 1

代码是完美的，我忘了在VBA工具中添加Xlwings参考。