获取两个相互绘制的直方图以具有相同宽度的 bin

Question

I have two histograms that ive plotted overeachother. Sample 1 has 100 objects and sample 2 has 6000 objects, but i've normalised them such that I can compare them. However is there a way to get it so both the histograms have the same width bins.

Code below:

bins=100
plt.hist(change_sample1, bins=bins, color='blue', edgecolor='black', label='Sample1', density=True)
plt.hist(change_sample2, bins=bins, color='red', edgecolor='black', label='Sample2', density=True) 
plt.xlabel('Change in sample size')
plt.ylabel('Proportion origional sample')
plt.xlim(-1, 1)
plt.title('Distribution of change in sample size')
plt.legend()
plt.show() 

So I'd like both histograms to have the same bin edges and widths, and I can totally change the number of bins each graph has, thats fine. Is there any way to do this?

Answer 1

You can use the range argument of plt.hist . In this case, given your x-range you could use plt.hist(change_sample1, bins=bins, range=(-1, 1), ...) . And then use the same range for change_sample2 .