With this code the style spec `'o'` is ignored when plotting error bars (#5638): ``` python In [25]: from numpy.random import randn In [26]: import pandas as pd In [27]: df = pd.DataFrame(randn(8,3), columns = "A B yerr".split()) In [28]: df.plot(x='A', y='B',style='o' ,yerr='yerr') Out[28]: <matplotlib.axes.AxesSubplot at 0x5259cd0> In [29]: pd.__version__ Out[29]: '0.13.1-791-g07f6d46' ```