Setting a relative frequency in a matplotlib histogram

Question

I have data as a list of floats and I want to plot it as a histogram. Hist() function does the job perfectly for plotting the absolute histogram. However, I cannot figure ou

Answer 1

Because normed option of hist returns the density of points, e.g dN/dx

What you need is something like that:

 # assuming that mydata is an numpy array
 ax.hist(mydata, weights=np.zeros_like(mydata) + 1. / mydata.size)
 # this will give you fractions