Python 在 x 轴上绘制多年数据的日​​时间

Question

I am plotting many years of data. On the x-axis, I am plotting time of the day and on y-axis the value. The problem is x-axis ticks builtup together, not visible. How do I solve it?

plt.plot(df.index.strftime('%H:%M'),df['ydata'],'.')#hour+ssdf.index.minute/60
plt.gcf().autofmt_xdate()
plt.show()

In the above plot, I wanted to see the x-axis ticks show 00:00, 02:00, etc.

Answer 1

You can try the first answer from this post .

Reducing the number of xticks by using plt.xticks will change the frequency of items appearing.