在 matplotlib 上为 set_xlim 使用 DateTimeIndex

Question

How can I set x/y limits on matplotlib to certain datetime values?

I got a DateTimeIndex object (called time) and i want the plots to fit inside the first and last value of this index.

If I try ax.set_xlim(time[0],time[-1])

it throws me this error:

Cannot compare type Timedelta with type float

Any suggestions?

Answer 1

The time handling in matplotlib is gregorian, so it needs to be converted, I think it needs to be done with date2num().

matplotlib API Overview: Dates

ax.set_xlim(date2num([series_.index.min(), series_.index.max()])) ax.xaxis.set_major_formatter(DateFormatter('%H:%M'))