比例尺

说明应用于轴的比例变换，例如： log，symlog，logit。

比例尺示例

  1. import numpy as np
  2. import matplotlib.pyplot as plt
  3. from matplotlib.ticker import NullFormatter
  5. # Fixing random state for reproducibility
  6. np.random.seed(19680801)
  8. # make up some data in the interval ]0, 1[
  9. y = np.random.normal(loc=0.5, scale=0.4, size=1000)
  10. y = y[(y > 0) & (y < 1)]
  11. y.sort()
  12. x = np.arange(len(y))
  14. # plot with various axes scales
  15. fig, axs = plt.subplots(2, 2, sharex=True)
  16. fig.subplots_adjust(left=0.08, right=0.98, wspace=0.3)
  18. # linear
  19. ax = axs[0, 0]
  20. ax.plot(x, y)
  21. ax.set_yscale('linear')
  22. ax.set_title('linear')
  23. ax.grid(True)
  26. # log
  27. ax = axs[0, 1]
  28. ax.plot(x, y)
  29. ax.set_yscale('log')
  30. ax.set_title('log')
  31. ax.grid(True)
  34. # symmetric log
  35. ax = axs[1, 1]
  36. ax.plot(x, y - y.mean())
  37. ax.set_yscale('symlog', linthreshy=0.02)
  38. ax.set_title('symlog')
  39. ax.grid(True)
  41. # logit
  42. ax = axs[1, 0]
  43. ax.plot(x, y)
  44. ax.set_yscale('logit')
  45. ax.set_title('logit')
  46. ax.grid(True)
  47. ax.yaxis.set_minor_formatter(NullFormatter())
  50. plt.show()

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