Marplot lib图形中的形状不匹配错误

Question

我正在尝试绘制一些matplot图。 我收到一个ValueError: shape mismatch: objects cannot be broadcast to a single shape错误。有什么想法吗？

import numpy as np
import matplotlib.pyplot as plt

y1 = 12
y2 = 5
korea_scores = (y1, y2)
col_count = 3
bar_width = .2
index = np.arange(col_count)
plt.bar(index, korea_scores, bar_width, alpha=.4, label="Korea")
plt.show()

Answer 1

index = n.arange(col_count)创建三列，而我们只有两列。 这是修改后的代码：

import numpy as np
import matplotlib.pyplot as plt

y1 = 12
y2 = 5
korea_scores = (y1, y2)
col_count = 3
bar_width = .2
index = np.arange(col_count-1)
plt.bar(index, korea_scores, bar_width, alpha=.4, label="Korea")
plt.show()