increase number of ticks matplotlib code example

Example 1: matplotlib limit number of ticks

plt.xaxis.set_major_locator(plt.MaxNLocator(3))
plt.yaxis.set_major_locator(plt.MaxNLocator(3))

Example 2: matplotlib custom ticks

axis.set_yticks([0.5,0.6,0.7,0.8,0.9,1.0])