在 X 軸上繪製日期時如何解決「年份超出範圍」錯誤？

Plotting Dates on the X-Axis: Resolving the "Year Out of Range" Error

When encountering the error "ValueError: year is out of range" while plotting dates on the x-axis using plot_date(), consider using the simpler plot() function instead. Here's how:

Convert Strings to Datetime Objects:

<code class="python">import datetime as dt

dates = ['01/02/1991','01/03/1991','01/04/1991']
x = [dt.datetime.strptime(d,'%m/%d/%Y').date() for d in dates]</code>

Plot with Datetime Formatting:

<code class="python">import matplotlib.pyplot as plt
import matplotlib.dates as mdates

plt.gca().xaxis.set_major_formatter(mdates.DateFormatter('%m/%d/%Y'))
plt.gca().xaxis.set_major_locator(mdates.DayLocator())
plt.plot(x,y)
plt.gcf().autofmt_xdate()</code>

Result:

This simpler approach will plot the dates on the x-axis correctly, as shown in the image below:

[Image of plot with dates on the x-axis]

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