x-axis inverted unexpectedly by pandas.plot(…)

Question

X axis was inverted automatically and unexpectedly when plotting a series of data against another series of data using pandas. Please look at my code below. How can I ensure

Answer 1

I asked this question on the issue tracker of pandas, and got answer.

daraframe.plot(..) is designed such that

• x coordinate of points is determined based on the index (i.e. row number) of the column specified by x parameter.
• y coordinate of points is the value of the column specified by y parameter.

For a scatter plot, I think the above design is not suitable. The only solution I can think of is to use plt.plot direclty.

cphlewis's workaround is also useful.