我有两个数据帧,看起来像这样
data = {'BugCatcher': ['Fred', 'Fred', 'George', 'George'],
'Date': ['1/13/2020', '1/14/2020', '1/20/2020', '1/26/2020'],
'BugsCaught': ['Spider','Spider', 'Butterfly', 'Butterfly'],
'BugsFound': [1, 4, 5, 8],
'BugsFoundRunningTotal': [1, 5, 5, 13]
}
bug_df = pd.DataFrame(data, columns = ['BugCatcher', 'Date', 'BugsCaught', 'BugsFound', 'BugsFoundRunningTotal'])
bug_df
BugCatcher Date BugsCaught BugsFound BugsFoundRunningTotal
0 Fred 1/13/2020 Spider 1 1
1 Fred 1/14/2020 Spider 4 5
2 George 1/20/2020 Butterfly 5 5
3 George 1/26/2020 Butterfly 8 13
data2 = {'Name': ['Fred', 'Fred', 'George', 'George'],
'Date': ['1/5/2020', '1/6/2020', '1/17/2020', '1/30/2020'],
'NumberOfBooksReadOnCatchingBugs': [2, 3, 1, 3],
}
book_df = pd.DataFrame(data2, columns = ['Name', 'Date', 'NumberOfBooksReadOnCatchingBugs'])
book_df
Name Date NumberOfBooksReadOnCatchingBugs
0 Fred 1/5/2020 2
1 Fred 1/6/2020 3
2 George 1/17/2020 1
3 George 1/30/2020 3
我正在寻找一种有条件地填充或连接某些部分的方法,以便得到这样的输出。我们的想法是,我们加入这两个部分,但只有在特定的日期。我们的想法是最终绘制一个直线和柱形图,将运行中的bug总数显示为一条直线,然后将书籍作为列阅读。我试过加入它,但没有给出正确的结果
desired = {'BugCatcher': ['Fred', 'Fred', 'Fred', 'Fred', 'George', 'George', 'George', 'George'],
'Date': ['1/5/2020', '1/6/2020','1/13/2020', '1/14/2020', '1/17/2020', '1/20/2020', '1/26/2020', '1/30/2020'],
'NumberOfBooksReadOnCatchingBugs': [2, 3, 3, 3, 1, 1, 1, 3],
'BugsType': ['Spider','Spider', 'Spider', 'Spider', 'Butterfly', 'Butterfly', 'Butterfly', 'Butterfly'],
'QuantityFound': [0, 0, 1, 4, 0, 5, 8, 0],
'BugsFoundRunningTotal': [0, 0, 1, 5, 0, 5, 13, 13]
}
output = pd.DataFrame(desired, columns = ['BugCatcher', 'Date', 'NumberOfBooksReadOnCatchingBugs', 'BugsType', 'QuantityFound', 'BugsFoundRunningTotal'])
output
BugCatcher Date NumberOfBooksReadOnCatchingBugs BugsType QuantityFound BugsFoundRunningTotal
0 Fred 1/5/2020 2 Spider 0 0
1 Fred 1/6/2020 3 Spider 0 0
2 Fred 1/13/2020 3 Spider 1 1
3 Fred 1/14/2020 3 Spider 4 5
4 George 1/17/2020 1 Butterfly 0 0
5 George 1/20/2020 1 Butterfly 5 5
6 George 1/26/2020 1 Butterfly 8 13
7 George 1/30/2020 3 Butterfly 0 13
感谢您的帮助
谢谢
试试这个:
输出:
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