绘制数据框

Question

我有一个这样的数据框：

ReviewDate_month,ProductId,Reviewer
01,185,185
02,155,155
03,130,130
04,111,111
05,110,110
06,98,98
07,101,92
08,71,71
09,73,73
10,76,76
11,105,105
12,189,189

我想绘制它，X 中的 ReviewDate_Month，Y 中的产品 ID 和审阅者。但我将从 Product ID 或 Reviewer 的 1 行开始。 所以我尝试了：

df_no_monthlycount.plot.line

收到以下错误消息：

File "C:/Users/user/PycharmProjects/Assign2/Main.py", line 59, in <module>
01                      185       185
02                      155       155
03                      130       130
04                      111       111
05                      110       110
06                       98        98
07                      101        92
08                       71        71
09                       73        73
10                       76        76
    df_no_monthlycount.plot.line
AttributeError: 'function' object has no attribute 'line'
11                      105       105
12                      189       189

Process finished with exit code 1

我也试过这个：

df_no_monthlycount.plot(x=df_helful_monthlymean['ReviewDate_month'],y=df_helful_monthlymean['ProductId'],style='o')

这样的错误信息：

Traceback (most recent call last):
  File "C:/Users/user/PycharmProjects/Assign2/Main.py", line 52, in <module>
    df_no_monthlycount.plot(x=df_helful_monthlymean['ReviewDate_month'],y=df_helful_monthlymean['ProductId'],style='o')
  File "C:\Python34\lib\site-packages\pandas\core\frame.py", line 1797, in __getitem__
    return self._getitem_column(key)
  File "C:\Python34\lib\site-packages\pandas\core\frame.py", line 1804, in _getitem_column
    return self._get_item_cache(key)
  File "C:\Python34\lib\site-packages\pandas\core\generic.py", line 1084, in _get_item_cache
    values = self._data.get(item)
  File "C:\Python34\lib\site-packages\pandas\core\internals.py", line 2851, in get
    loc = self.items.get_loc(item)
  File "C:\Python34\lib\site-packages\pandas\core\index.py", line 1572, in get_loc
    return self._engine.get_loc(_values_from_object(key))
  File "pandas\index.pyx", line 134, in pandas.index.IndexEngine.get_loc (pandas\index.c:3838)
  File "pandas\index.pyx", line 154, in pandas.index.IndexEngine.get_loc (pandas\index.c:3718)
  File "pandas\hashtable.pyx", line 686, in pandas.hashtable.PyObjectHashTable.get_item (pandas\hashtable.c:12294)
  File "pandas\hashtable.pyx", line 694, in pandas.hashtable.PyObjectHashTable.get_item (pandas\hashtable.c:12245)
KeyError: 'ReviewDate_month'

Answer 1

如果你想在X、Product ID 和Reviewer 中绘制ReviewDate_Month 在Y，你可以这样做：

df_no_monthlycount.plot(x='ReviewDate_Month', y=['Product ID', 'Reviewer'])

Answer 2

拨打plot如下图：

import pandas as pd
import matplotlib.pyplot as plt

df = pd.read_csv('data.csv')

print(df)

df.plot(x ='ReviewDate_month',y=['ProductId', 'Reviewer'] ,kind='line')
plt.show()

会给你：