I'm looking for a way to find the last instance on an entry in the columns A,B and get the corresponding values from columns C,D
In the example below value for Henry is 1374 and value for Amy is 1124
Name1 corresponds to Value1 and Name2 corresponds to Value2. Is there a formula to find the last entry from both columns Name1 and Name2 and return the corresponding Value1 or Value2
Raw data pasted below:
Name1 Name2 Value1 Value2
Sara Amy 1265 1241
John Sara 1142 1214
Amy Henry 1295 1121
Amy John 1175 1323
Sara John 1085 1251
Sara Henry 1242 1374
Amy Sara 1124 1055
Assumptions:
Data Grid is in cells A1:D8
. Values "Henry" & "Amy" are in cell A10
& A11
respectively.
Formula implementation:
In cell B10
following formula is implemented.
Alternative 1:
=INDEX($C$2:$D$8,MAX(IFERROR(LOOKUP(2,1/($A$2:$A$8=A10),ROW($A$2:$A$8)),-1),IFERROR(LOOKUP(2,1/($B$2:$B$8=A10),ROW($B$2:$B$8)),-1))-1,IF(IFERROR(LOOKUP(2,1/($A$2:$A$8=A10),ROW($A$2:$A$8)),-1)>IFERROR(LOOKUP(2,1/($B$2:$B$8=A10),ROW($B$2:$B$8)),-1),1,2))
Alternative 2 (slightly shorter than 1):
=INDEX($C$2:$D$8,LOOKUP(2,1/SEARCH(A10&",",$A$2:$A$8&","&$B$2:$B$8&",",1),ROW($A$2:$A$8))-1,IF(IFERROR(LOOKUP(2,1/($A$2:$A$8=A10),ROW($A$2:$A$8)),-1)>IFERROR(LOOKUP(2,1/($B$2:$B$8=A10),ROW($B$2:$B$8)),-1),1,2)).
To be copied down as much needed.
Notice -1 value after MAX()
function which is used to adjust row number. It should be always n-1 considering data starts at nth row.
I've been trying to remember another method I've seen for 2d lookup (I can't find the link any more). It's basically like this
=INDIRECT(TEXT(MAX((ROW($A$2:$B$8)*100+COLUMN($A$2:$B$8))*($A$2:$B$8=A10))+2,"R0C00"),FALSE)
entered as an array formula using Ctrl Shift Enter .
So the idea is that you generate a number from the row and column where the last occurrence of the name is located (so for Henry it would be 702).
The you format it to give R7C02 and feed this in to an indirect to give the reference to the cell in RC notation. The column plus 2 gives the cell that you want.
You might notice that this would fail if column>99, but you can make the multiplier as big as you want.
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