from numpy import *
from matplotlib.pyplot import *
 
fig = figure(figsize=(8,5))
ax = fig.add_subplot(111)
ax.grid(b=True,which='major')
ax.minorticks_on()

x = linspace(0.001, 0.999, 100)
y = log(x / (1.0 - x))
 
ax.plot(x,y, label=r"$y=\log(\frac{x}{1-x})$")
ax.set_ylabel(r"$y$")
ax.set_xlabel(r"$x$")
ax.legend()
fig.savefig("logit.svg",bbox_inches="tight",\
        pad_inches=.15)