Python 为不同的 bin 大小显示相同的 bin 宽度

问题描述

我有这个代码

bins = [0,1,10,20,30,40,50,75,100]
plt.figure(figsize=(15,15))
plt.hist(df.v1, bins = bins)

我的问题是，图中的垃圾箱宽度与它们在 bins 中的范围成正比.但是，我希望所有垃圾箱都具有相同的宽度.

My problem is that the bin widths as they appear in the figure are proportional to their range in bins. However, I want all bins to come out having the same width.

推荐答案

我不确定您如何看待结果，但可以使用 numpy.histogram 计算高度条形，然后直接针对任意x比例绘制这些条形.

I'm not sure how you'll make sense of the result, but you can use numpy.histogram to calculate the height of your bars, then plot those directly against an arbitrary x-scale.

x = np.random.normal(loc=50, scale=200, size=(2000,))
bins = [0,1,10,20,30,40,50,75,100]
fig = plt.figure()
ax = fig.add_subplot(211)
ax.hist(x, bins=bins, edgecolor='k')
ax = fig.add_subplot(212)
h,e = np.histogram(x, bins=bins)
ax.bar(range(len(bins)-1),h, width=1, edgecolor='k')

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