Logarithmic y-axis bins in python

Question

I\'m trying to create a histogram of a data column and plot it logarithmically (y-axis) and I\'m not sure why the following code does not work:

Answer 1

try

plt.yscale('log', nonposy='clip')

http://matplotlib.org/api/pyplot_api.html#matplotlib.pyplot.yscale

The issue is with the bottom of bars being at y=0 and the default is to mask out in-valid points (log(0) -> undefined) when doing the log transformation (there was discussion of changing this, but I don't remember which way it went) so when it tries to draw the rectangles for you bar plot, the bottom edge is masked out -> no rectangles.