小编Raa*_*han的帖子

我正在 matplotlib 中编写代码以在子图网格下打印多个直方图，但是，当我最后调用 Fig.legend() 函数时，每个图的图例都会打印两次。任何有关如何解决此问题的指导将不胜感激：）这是我的代码：

import numpy as np
import pandas as pd
import matplotlib.pyplot as plt
import seaborn as sns
sns.set_style('darkgrid')
def get_cmap(n, name='hsv'):
    return plt.cm.get_cmap(name, n)
def isSqrt(n):
   sq_root = int(np.sqrt(n))
   return (sq_root*sq_root) == n
df = pd.read_csv('mpg.csv')
df2 = pd.read_csv('dm_office_sales.csv')
df['miles'] = df2['salary']
numericClassifier = ['int16', 'int32', 'int64', 'float16', 'float32', 'float64']
newdf = df.select_dtypes(numericClassifier)
columns = newdf.columns.tolist()
n = len(columns)
cmap = get_cmap(n)
if(isSqrt(n)):
    nrows = ncols = int(np.sqrt(n))
else:
    ncols = int(np.sqrt(n))
    for i in range(ncols,50): …