我有一个包含以下列的数据框：“项目”，“小时”，“收入”，“费率”
我尝试用X轴上的“费率”和Y轴上的“收入”构建一个重新绘制图，并在我的重新绘制图上的点上添加项目名称标签。这是我的代码：
ax=sns.regplot(x = 'Revenue', y = 'Rate',data= df_hours_revenue, ci = None)
sns.set(rc={'figure.figsize':(20,10)})
# ax.set_xlabel('')
# ax.set_ylabel('Rate (£/hour)')
sns.set_context('poster')
plt.title("Rate vs. project revenue 2018-2019")
for line in range(0,df_hours_revenue.shape[0]):
ax.text(df_hours_revenue.Revenue[line], df_hours_revenue.Rate[line],
df_hours_revenue.Project[line], horizontalalignment='left',
size='small', color='Black', weight='normal')
结果是添加了一些标签的图形，并且出现了我不理解的输出错误：
KeyError Traceback (most recent call last)
<ipython-input-55-fdcfd6157523> in <module>
9
10 for line in range(0,df_hours_revenue.shape[0]):
---> 11 ax.text(df_hours_revenue.Revenue[line], df_hours_revenue.Rate[line],
12 df_hours_revenue.Project[line], horizontalalignment='left',
13 size='small', color='Black', weight='normal')
~/anaconda3/lib/python3.7/site-packages/pandas/core/series.py in __getitem__(self, key)
866 key = com.apply_if_callable(key, self)
867 try:
--> 868 result = self.index.get_value(self, key)
869
870 if not is_scalar(result):
~/anaconda3/lib/python3.7/site-packages/pandas/core/indexes/base.py in get_value(self, series, key)
4373 try:
4374 return self._engine.get_value(s, k,
-> 4375 tz=getattr(series.dtype, 'tz', None))
4376 except KeyError as e1:
4377 if len(self) > 0 and (self.holds_integer() or self.is_boolean()):
pandas/_libs/index.pyx in pandas._libs.index.IndexEngine.get_value()
pandas/_libs/index.pyx in pandas._libs.index.IndexEngine.get_value()
pandas/_libs/index.pyx in pandas._libs.index.IndexEngine.get_loc()
pandas/_libs/hashtable_class_helper.pxi in pandas._libs.hashtable.Int64HashTable.get_item()
pandas/_libs/hashtable_class_helper.pxi in pandas._libs.hashtable.Int64HashTable.get_item()
KeyError: 6