如何在matplotalib上以对数刻度可视化值?

问题描述

我有非常小的差异，例如... 0.000001.我想以对数刻度将它们可视化.我想知道如何在matplotlib中做到这一点.

非常感谢

解决方案

I have vales with very small difference like... 0.000001. I want to visualize them on logarithmic scale. I am wondering how to do it in matplotlib.

Thanks a lot

解决方案

http://matplotlib.sourceforge.net/api/pyplot_api.html#matplotlib.pyplot.axis

Simply add the keyword argument log=True

Or, in an example:

from matplotlib import pyplot
import math
pyplot.plot([x for x in range(100)],[math.exp(y) for y in range(100)] )
pyplot.xlabel('arbitrary')
pyplot.ylabel('arbitrary')
pyplot.title('arbitrary')

#pyplot.xscale('log')
pyplot.yscale('log')

pyplot.show()

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