Excel | Index Match | - excel

Question

I require your assistance on the following:
Lets say we got 3 different groups: (A,B,C)
And we have a few value ranges within each group:
(Eg. A has 0 - 100, 101 - 200 while B has 0 - 200, 201 - 400 and C has 0 - 300, 301 - 600.)
At the end, for each group that falls under whatever range they have, they will be assigned a final number.
(Eg.
[A,95] = 0.5 / [A,101] = 1.0
[B,95] = 1.5 / [B,205] = 3.0
[C,95] = 4.5 / [C,308] = 6.0)
Currently i have my index match formula as follows:
"=INDEX(finalnumber!F2:F29,MATCH(C11&C25,Group!A2:A29&valuerange!D2:D29,0))"
I keep getting a #N/A response.
I have also created an array table as follows:
enter image description here
Group Range Final Number
A 0 - 100 0.50
A 101 - 200 1.00
B 0 - 200 1.50
B 201 - 400 3.00
C 0 - 300 4.50
C 301 - 600 6.00
Pls help! Many thanks in advance!

Answer 1

You can use the following (you will need to tailor to your layout). I have assumed A and 95, for example, are in separate cells as you concatenate cells in your formula to do your lookup.
=IF(AND(ISERROR(INDEX(OFFSET(INDEX(C:C,H2),,,I2-H2+1,1),MATCH(VLOOKUP(G2,LEFT(OFFSET(INDEX(B:B,H2),,,I2-H2+1,1),FIND("-",OFFSET(INDEX(B:B,H2),,,I2-H2+1,1))-1)*1,TRUE),LEFT(OFFSET(INDEX(B:B,H2),,,I2-H2+1,1),FIND("-",OFFSET(INDEX(B:B,H2),,,I2-H2+1,1))-1)*1,0))),INDEX(A:A,COUNTA(A:A)+1)=F2,G2>=1*LEFT(INDEX(B:B,COUNTA(A:A)+1),FIND("-",INDEX(B:B,COUNTA(A:A)+1))-1),G2<=1*RIGHT(INDEX(B:B,COUNTA(A:A)+1),LEN(INDEX(B:B,COUNTA(A:A)+1)) - FIND("-",INDEX(B:B,COUNTA(A:A)+1)))),INDEX(C:C,COUNTA(A:A)+1),INDEX(OFFSET(INDEX(C:C,H2),,,I2-H2+1,1),MATCH(VLOOKUP(G2,LEFT(OFFSET(INDEX(B:B,H2),,,I2-H2+1,1),FIND("-",OFFSET(INDEX(B:B,H2),,,I2-H2+1,1))-1)*1,TRUE),LEFT(OFFSET(INDEX(B:B,H2),,,I2-H2+1,1),FIND("-",OFFSET(INDEX(B:B,H2),,,I2-H2+1,1))-1)*1,0)))
This is entered as an array formula with Ctrl+ Shift+ Enter
Formulas in helper cells (to keep overall formula more legible):
H2 is =MATCH(F2,A:A,0) ' finds the first match for the letter e.g. A
I2 is =MAX(IF(A:A=F2,ROW(A:A)-ROW(INDEX(A:A,1,1))+1)) ' finds the last match for the letter e.g. A. This is entered with Ctrl+ Shift+ Enter i.e. an array formula.
Data layout
Example run:
Notes:
You might want to wrap the whole thing in an IFERROR( formula, "") to hide any not found error messages.

Answer 2

I'm unclear why you require four separate worksheets for this operation. For simplicity in demonstrating, I've put your lookup table on the same worksheet as the values to lookup.
=SUMPRODUCT(I$2:I$7, (G$2:G$7=LEFT(A2))*(--REPLACE(H$2:H$7, FIND(" - ", H$2:H$7), 9, TEXT(,))<=--MID(A2, 3, 9))*
(--REPLACE(H$2:H$7, 1, FIND(" - ", H$2:H$7)+1, TEXT(,))>=--MID(A2, 3, 9)))