How to have logarithmic bins in a Python histogram
Question: As far as I know the option Log=True in the histogram function only refers to
the y-axis.

    
    
    P.hist(d,bins=50,log=True,alpha=0.5,color='b',histtype='step')
    

I need the bins to be equally spaced in log10. Is there something that can do
this?


Answer: use logspace() to create a geometric sequence, and pass it to bins parameter.
And set the scale of xaxis to log scale.

    
    
    import pylab as pl
    import numpy as np
    
    data = np.random.normal(size=10000)
    pl.hist(data, bins=np.logspace(0.1, 1.0, 50))
    pl.gca().set_xscale("log")
    pl.show()
    

![enter image description here](http://i.stack.imgur.com/HmY2I.png)

