Log x-axis for histogram

Question

I'm trying to plot a histogram with a logarithmic x axis. The code I'm currently using is as follows

plt.hist(data, bins=10 ** np.linspace(0, 1, 2, 3), normed=1) 
plt.xscale("log")

However, the x axis doesn't actually plot correctly! It just goes from 1 to 100. Ideally I'd like to have tick marks for 1, 10, 100, and 1000. Any ideas?

Answer 1

The following works.

import matplotlib.pyplot as plt
import numpy as np

data = [1.2, 14, 150 ]
bins = 10**(np.arange(0,4))
print "bins: ", bins
plt.xscale('log')
plt.hist(data,bins=bins) 


plt.show()

In your code the probelm is the bins array. It has only two values, [1, 10], while if you want tickmarks at 1,10,100,and 1000 you need to provide those numbers as bins.