单位处理

下面的示例显示了对掩码数组的单位转换的支持。

此示例需要basic_units.py

单位处理示例

  1. import numpy as np
  2. import matplotlib.pyplot as plt
  3. from basic_units import secs, hertz, minutes
  5. # create masked array
  6. data = (1, 2, 3, 4, 5, 6, 7, 8)
  7. mask = (1, 0, 1, 0, 0, 0, 1, 0)
  8. xsecs = secs * np.ma.MaskedArray(data, mask, float)
  10. fig, (ax1, ax2, ax3) = plt.subplots(nrows=3, sharex=True)
  11. ax1.scatter(xsecs, xsecs)
  12. ax1.yaxis.set_units(secs)
  13. ax1.axis([0, 10, 0, 10])
  15. ax2.scatter(xsecs, xsecs, yunits=hertz)
  16. ax2.axis([0, 10, 0, 1])
  18. ax3.scatter(xsecs, xsecs, yunits=hertz)
  19. ax3.yaxis.set_units(minutes)
  20. ax3.axis([0, 10, 0, 1])
  22. fig.tight_layout()
  23. plt.show()

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