我想在两侧(左侧和右侧)使用y-ticks,但在相同的y点使用不同的标签。我试过跟随,但我无法在相同的位置定位滴答声。
我是matplotlib的新手。我已经完成了matplotlib示例,但无法弄清楚我的问题的解决方案。
http://matplotlib.org/examples/pylab_examples/barchart_demo2.html
非常感谢任何建议。
以下是代码:
import numpy as np
import matplotlib.pyplot as plt
groups = [ 1, 2, 3, 4, 5 ]
members = [ 1, 2, 3, 4 ]
colors = [ 'r', 'y', 'b', 'k']
#store score of members for the groups
scores = {member: 100*np.random.rand(len(groups)) for member in members}
group_cnt = group_cnt = sum([scores[member] for member in members])
print scores
fig = plt.figure(figsize=(8,6))
ax = fig.add_subplot(111)
width_bar = 0.5
width_space = 0.2
#position of barh
total_space = len(groups)*(len(members)*width_bar)+(len(groups)-1)*width_space
ind_space = len(members)*width_bar
step = ind_space/2.
#pos for labels
pos = np.arange(step, total_space+width_space, ind_space+width_space)
#pos for grin lines
minor_pos = np.arange(ind_space, total_space+width_space, ind_space+width_space)
for idx in xrange(len(members)):
ax.barh(pos-step+idx*width_bar, scores[members[idx]], width_bar, edgecolor='k', color=colors[idx], linewidth=3)
ax.invert_yaxis()
ax.set_yticks(pos)
ax.set_yticklabels(groups)
ax.set_yticks(minor_pos, minor=True)
ax.grid(True, which='minor')
ax.set_ylabel('Groups')
ax2 = ax.twinx()
ax2.set_ylabel('Group totals')
ax2.set_yticks(pos)
ax2.set_yticklabels(group_cnt)
ax2.invert_yaxis()
plt.show()
答案 0 :(得分:1)
我认为你在这个例子中被一点诡计所困扰。演示代码中有一个plot([100, 100], [0, 5])
正在做很多非显而易见的工作(我正在提交PR以改进演示),以确保{{1}的ylimits相同}。
你只需要添加一个
yaxis
在致电ax2.set_ylim(ax.get_ylim())
之前。
您还有一个不相关的错误show
- > ax2.set_yticklabels(group_cnt)
。
[旁注,生成PR #2327]