Label histogram by bins matplotlib [duplicate]

Question

I have a histogram in which I want to label the x-axis by bins. The histogram is plotted as a log log graph, but the bins are very specific. The graph:

The bins:

bins = [0, 0.035, 0.07, 0.15, 0.5, 1, 3, 10, 40]

Is there any way I can do this? I believe it would also require getting rid of the current x-axis labels.

What about ax.set_xticks(bins)? Also, I think it would look better if you added the paramater edgecolor="k" in your plt.hist. — Vinícius Figueiredo
– Vinícius Figueiredo, Commented Jul 21, 2017 at 4:18

yuhow5566 · Accepted Answer · 2017-07-21 04:43:45Z

I wrote an example code for you. Basically, all you need was 'set_xticks' and 'set_xticklabels'.

import numpy as np import matplotlib.pyplot as plt x = [0.01, 0.01, 0.01, 0.04, 0.1, 0.1, 0.4, 0.4, 0.4, 0.4, 0.65, 0.65, 0.65, 2, 7, 7, 7, 7, 7, 7, 7, 7, 18, 18, 18] my_bins = [0.001, 0.035, 0.07, 0.15, 0.5, 1, 3, 10, 40] ind = np.array(my_bins[:-1]) width = np.array([my_bins[i+1]-my_bins[i] for i in range(len(my_bins)-1)]) fig, ax = plt.subplots() ax.hist(x, bins=my_bins) ax.set_xscale('log') ax.set_xticks(ind + width/2) ax.set_xticklabels(('bin1', 'bin2', 'bin3', 'bin4', 'bin5', 'bin6', 'bin7', 'bin8')) plt.show()

That worked, except my labels are slightly misaligned with the bins. :)
Great! I think you can adjust the xticks to align your labels. This can be done by modifying the 'ind' and 'width' array.
sorry if im asking an obvious question but how would i adjust these arrays to make the labels go slightly left?
If you try to print the content of 'ind+width/2', you will see a list. Each value in this list stands for the position where you want to show your labels along x-axis. I show the label in the center of each bin.

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