根据另一个列值过滤项目，结果在一个单元格中

Question

I have table like this in excel:

A  B  C
 -----------
1| a  t
2| b
3| c  t
4| d
5| e  t
6| f  t

and want select all values in column A where value in column B is 't'. There is no problem to select them with matrix formula like this:

=JEŻELI.BŁĄD(INDEKS(A1:A10;MIN.K(JEŻELI(B1:B10="t";WIERSZ(B1:B10);"");WIERSZ()));"")

but the problem is that I want send the result to one cell only (example result based on above table):

"a,c,e,f"

It is possible without writing a VBA code?

Answer 1

If you have Office 365 Excel you can use TEXTJOIN as an array formula:

=TEXTJOIN(",",TRUE,IF($B$1:$B$6 = "t",$A$1:$A$6,""))

Being an array formula it must be confirmed with Ctrl-Shift-Enter instead of Enter when Exiting edit mode. If done correctly then Excel will put {} around the formula.

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If you do not have Office 365 Excel or do not want to us an array formula then you will need a helper column.

In C1 put:

=IF(B1="t",A1&"," &C2,C2)

And copy down the length of the dataset.

Then in D1 put:

=LEFT(C1,LEN(C1)-1)