谷歌表格 - 将一列中的单元格组合成两列并具有所有可能组合的功能？答案

【问题标题】：Google Sheets - Function to combine cells in a column into two columns with all possible combinations?谷歌表格 - 将一列中的单元格组合成两列并具有所有可能组合的功能？
【发布时间】：2019-02-19 16:58:21
【问题描述】：

谁能帮我写一个谷歌表格函数来做这个：

需要做什么的 Google 表格示例：

第一列可以用 X 行填充，每行都有一个名称。

根据这些名称，“目标”和“源”列将填充名称之间的所有可能组合，无需重复一对（如果您已经有“Gustavo | Jacinto”，你不需要“Jacinto | Gustavo”）。

我知道我可以使用 python 和其他东西来解决这个问题，但我想使用 Google Sheets 的函数来解决这个问题，因为它会更快地获得我需要的响应。

【问题讨论】：

我在这里找到了另一种方法stackoverflow.com/questions/47922267/…

标签： google-sheets combinations google-sheets-formula

【解决方案1】：

=QUERY(ARRAYFORMULA(SPLIT(
 TRANSPOSE(SPLIT(REPT(CONCATENATE(A2:A&CHAR(9)), COUNTA(A2:A)),  CHAR(9)))& " "&
 TRANSPOSE(SPLIT(CONCATENATE(REPT(A2:A&CHAR(9),  COUNTA(A2:A))), CHAR(9))), " ")),
 "where Col1<>Col2 order by Col1", 0)

【讨论】：

谢谢！它工作得非常好。 但是有什么方法可以防止函数产生重复的关系，如“name1 | name2”和“name2 | name1”？这真的很有帮助。

【解决方案2】：

=ARRAYFORMULA(SPLIT(SORT(
 TRANSPOSE(SPLIT(CONCATENATE(REPT(UNIQUE(TRANSPOSE(SPLIT(JOIN(",",TEXTJOIN(",",1,A2:A)),",")))&","&
 TRANSPOSE(UNIQUE(TRANSPOSE(SPLIT(JOIN(",",TEXTJOIN(",",1,A2:A)),",")))), (
 UNIQUE(TRANSPOSE(SPLIT(JOIN(",",TEXTJOIN(",",1,A2:A)),",")))<=
 TRANSPOSE(UNIQUE(TRANSPOSE(SPLIT(JOIN(",",TEXTJOIN(",",1,A2:A)),",")))))*
 REGEXMATCH(CONCATENATE(","&SUBSTITUTE(TEXTJOIN(",",1,A2:A),",",",,")&","&CHAR(9)),"(,"&
 UNIQUE(TRANSPOSE(SPLIT(JOIN(",",TEXTJOIN(",",1,A2:A)),",")))&",[^\t]*,"&
 TRANSPOSE(UNIQUE(TRANSPOSE(SPLIT(JOIN(",",TEXTJOIN(",",1,A2:A)),","))))&",)|(,"&
 TRANSPOSE(UNIQUE(TRANSPOSE(SPLIT(JOIN(",",TEXTJOIN(",",1,A2:A)),","))))&",[^\t]*,"&
 UNIQUE(TRANSPOSE(SPLIT(JOIN(",",TEXTJOIN(",",1,A2:A)),",")))&",)"))&CHAR(9)),CHAR(9)))),","))

【讨论】：