userwarning: fixedformatter should only be used together with fixedlocator

这是一个警告信息，意思是说在使用 fixedformatter 时，应该同时使用 fixedlocator。fixedformatter 和 fixedlocator 是 matplotlib 库中的两个类，用于设置坐标轴的刻度和标签。如果只使用 fixedformatter 而不使用 fixedlocator，可能会导致刻度和标签不对齐或者出现其他问题。因此，建议在使用 fixedformatter 时，同时使用 fixedlocator。

相关问题

如何解决UserWarning: FixedFormatter should only be used together with FixedLocator问题

这个问题属于技术问题，可以通过以下方式解决：

1. 确定matplotlib版本是否为3.3.2或更高版本，如果不是，升级到该版本。

2. 在使用FixedFormatter之前，确保已经设置了FixedLocator。

3. 在设置FixedLocator和FixedFormatter之前，确保x轴或y轴上有足够的数据点。

如果仍然无法解决问题，请参考相关技术文档或向相关技术社区求助。

UserWarning: FixedFormatter should only be used together with FixedLocator ax.set_xticklabels([''] + list(jieba.cut(input_sentence)) + ['<EOS>'], rotation=90)

UserWarning: FixedFormatter should only be used together with FixedLocator

This warning message indicates that the `set_xticklabels` method on an axis object is being used with a list of tick labels that does not match the locations of the actual ticks on the plot. This can result in unexpected or incorrect labeling of the plot.

The code `ax.set_xticklabels([''] + list(jieba.cut(input_sentence)) + ['<EOS>'], rotation=90)` is attempting to set the tick labels on the x-axis of a plot represented by the `ax` object. The list being passed as an argument to `set_xticklabels` includes an empty string followed by the result of applying the `cut` method from the `jieba` library to the `input_sentence` variable, and then appending the string `"<EOS>"`. The `rotation` argument is used to rotate the tick labels by 90 degrees.

To fix the warning message, it is necessary to ensure that the list of tick labels passed to `set_xticklabels` is of the same length as the number of actual ticks on the axis. One possible way to do this is to use the `set_xticks` method to explicitly set the locations of the ticks before setting the tick labels. For example:

ax.set_xticks(range(len(list(jieba.cut(input_sentence))) + 2))
ax.set_xticklabels([''] + list(jieba.cut(input_sentence)) + ['<EOS>'], rotation=90)