python 数据集 - 读取一组列并将其放在单独的数据框中？

Question

任何人都可以帮助我，因为我是 python.I 的新手，有一个名为采购数据的数据集，其中每个 PO activity 的每个 CaseID 的日志数据都存在于数据集中。

Case Id     Activity                                 transactionstatus                                   
1           Create Purchase Requisition                     Closed
1           Create Request for Quotation Requester          Closed
1           Analyze Request for Quotation                   Closed
1           Send Request for Quotation to Supplier          Closed
1           Create Quotation comparison Map                 Closed
1           Analyze Quotation comparison Map                Closed
1           Choose best option                              Closed
1           Settle conditions with supplier                 Closed
1           Create Purchase Order                           Closed
1           Confirm Purchase Order                          Closed
1           Deliver Goods Services                          Closed
1           Release Purchase Order                          Closed
1           Approve Purchase Order for payment              Closed
1           Send invoice                                    Closed
1           Release Supplier's Invoice                      Closed
1           Authorize Supplier's Invoice payment            Closed
1           Pay invoice                                     Closed

这里每个Case Id被认为是一个variable.So总共有1949个这样的变量。

例如：案例Id:1被认为是从Activity列'Create purchase Requisition'到'Pay invoice'的一个变量然后那里TransactionStatus 被视为 'closed'。（如上数据）

现在有许多 caseID 的 transactionStatus 为 'open' 现在我要做的是尝试获取所有 caseId 和相应的 Activity（整个数据来自 activity 'create...' 直到 'analyze....') 的交易状态为 'open' 并试图将其放入单独的数据集

例如：

Case ID Activity                                         TransactionStatus
1941    Create Purchase Requisition                            Closed
1941    Analyze Purchase Requisition                           Closed
1941    Create Request for Quotation Requester Manager         Closed
1941    Analyze Request for Quotation                           Open
1949    Create Purchase Requisition                            Closed
1949    Analyze Purchase Requisition                            Open

共有196条记录处于未结交易状态！谁能帮我解决这个问题

Answer 1

试试这个

df = df[df.loc[:, 'caseID'].isin(df[df['TransactionStatus'] == 'Open']['caseID'])]

python 数据集 - 读取一组列并将其放在单独的数据框中？

python dataset - Read a group of column and place it in seperate dataframe?

python

python-2.7

python-3.x

po

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