问题
Can anyone help me write a Google Sheets function for doing this:
Google Sheets example of what needs to be done:
The first column could be filled with X lines with a name in each one.
From that names, the columns "target" and "source" would be filled with all possible combinations between the names, without repeating a pair (if you already have "Gustavo | Jacinto", you don't need "Jacinto | Gustavo").
I know I can solve this problem using python and other stuff, but I wanted to do this using Google Sheets' functions because it would be faster to get the response I need.
回答1:
=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)))),","))
回答2:
=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)
来源：https://stackoverflow.com/questions/54771356/google-sheets-function-to-combine-cells-in-a-column-into-two-columns-with-all