Question

我正在绘制一个简单的水平条形图。为了便于阅读，我想使用关键字参数，但是当我这样做时，我得到了一个带有未记录的必需参数的错误。

import pandas as pd
import matplotlib.pyplot as plt
plt.figure(figsize=(4,2))

# this example works
plt.barh([1, 1, 1], 
         [9.5, 8.5, 28.5], 
         [.3, .3, .3],
         [-2207, -2197, -2188])

# here I want to use keyword arguments for readability, according to 
# https://matplotlib.org/api/_as_gen/matplotlib.pyplot.barh.html?highlight=barh  
plt.barh(y=[1, 1, 1], 
         width= [9.5, 8.5, 28.5], 
         height = [.3, .3, .3],
         left = [-2207, -2197, -2188])

# But I get error:
#   File "<ipython-input-6-2f6ee5c89917>", line 4, in <module>
#   left = [-2207, -2197, -2188])

# TypeError: barh() missing 1 required positional argument: 'bottom'

没有＆＃39;底部＆＃39; documentation中的参数：

bar(y, width, *, align='center', **kwargs)
bar(y, width, height, *, align='center', **kwargs)
bar(y, width, height, left, *, align='center', **kwargs)```

意外所需的参数＆＃39; bottom＆＃39;在matplotlib.pyplot.barh（）中

0 个答案: