tushare.stock.indicator.py plot bug

[Miraclemarvel55]

Traceback (most recent call last): File "/media/feiyu/Data/SAP3_workspace/SAP_Python/test/indictor_test.py", line 15, in idx.plot_all(data, is_show=True, output=None) File "/media/feiyu/Data/SAP3_workspace/SAP_Python/test/indictor.py", line 788, in plot_all plt.plot(data["date"], data["close"], label="close") File "/usr/lib/python2.7/dist-packages/matplotlib/pyplot.py", line 3318, in plot ret = ax.plot(*args, *kwargs) File "/usr/lib/python2.7/dist-packages/matplotlib/init.py", line 1894, in inner return func(ax, args, **kwargs) File "/usr/lib/python2.7/dist-packages/matplotlib/axes/_axes.py", line 1407, in plot self.add_line(line) File "/usr/lib/python2.7/dist-packages/matplotlib/axes/_base.py", line 1787, in add_line self._update_line_limits(line) File "/usr/lib/python2.7/dist-packages/matplotlib/axes/_base.py", line 1809, in _update_line_limits path = line.get_path() File "/usr/lib/python2.7/dist-packages/matplotlib/lines.py", line 989, in getpath self.recache() File "/usr/lib/python2.7/dist-packages/matplotlib/lines.py", line 676, in recache x = np.asarray(xconv, np.float) File "/usr/lib/python2.7/dist-packages/numpy/core/numeric.py", line 531, in asarray return array(a, dtype, copy=False, order=order) ValueError: invalid literal for float(): 2018-05-25

The error occurs because you are trying to plot some stuff with dates as strings on the x-axis while plt.plot() expects numerical values. Hence it fails when it tries to convert '25/05/2018' to a float, which cannot work.

You need to convert your x-values to datetime objects and then use plt.plot_date, which is for example demonstrated here. https://matplotlib.org/examples/pylab_examples/date_demo1.html

repair method is change plot() to plot_date()

[Johnzjy]

你应该是plot 时，日期格式有问题，index 不建议使用日期。