[PYTHON] matplotlib log scale display and grid display

Make a note because I will forget it when I want to use it. How to display log (logarithmic) scale and grid (scale line) in matplotlib.

environment

• Python 3.5.1
• matplotlib 1.5.1

Preparation

First, import matplotlib

import matplotlib.pyplot as plt

Log scale display

Specify yscale as'log' to make the y-axis a logscale. If you want the x-axis to be the log scale, use plt.xscale ('log').

plt.plot([10,20,30],[10,100,1000],marker='^')
plt.yscale('log')
plt.show()

Grid display

Specify plt.grid () to display the grid. The'major'and'minor' of which = are the main scale line and the auxiliary scale line, respectively. You can also specify the color and line type with color and linestyle.

plt.plot([10,20,30],[10,100,1000],marker='^')
plt.yscale('log')

plt.grid(which='major',color='black',linestyle='-')
plt.grid(which='minor',color='black',linestyle='-')

plt.show()