vlookup

M

Mike H

Jock

Array is A1 to B10 & lookup value in C1, Try:-

=MATCH((VLOOKUP(C1,A1:B10,2,FALSE)),B1:B10,0)

Mike
 
J

Jock

So far, so good.
It returns the first instance the criteria is matched rather than listing
them if there's more than one.
Also, could the lookup value be something like >5 so it returns all row
numbers for values greater than, in this case, 5?
 
M

Mike H

Hi Jock,

Put this in a cell and drag down. In the first cell it will return the row
number of the first instance and in the second row the second etc. When it
stops finding matches it will reutrn Ref errors.

=MATCH(INDEX($A$1:$B$10,SMALL(IF($A$1:$B$10=$C$1,ROW($A$1:$B$10)-ROW($A$1)+1,ROW($B$10)+1),ROW(A1)),2),$B$1:$B$10,0)

It's an array so Ctrl+Shift+Enter.

Any more surprises:)

Mike
 
J

Jock

Thanks for this input, nearly there.....

If I put '5' B4, then C1 gives the correct row re, i.e. - 4.
Another 5 in 'B9' gives the same row ref in C2. (that is, 4)

A '5' in 'A4' puts "4" in C3
A '5' in 'A9' puts a "4" in C4
Removing the "5" from 'B9' changed C3 and C4 to '#N/A' and '#Ref!'
respectively.
hth
 
M

Mike H

Jock,

I'm confused, Can you confirm which column you want to lookup and return the
row of, A or B

Mike
 
M

Mike H

Jock,

After having failed with Index/match and a UDF, a completely different
approach using a helper column.
Col a Col B Col C Col D
a a1 12 a
b b1 13
c c1 14
a a2 15
e e1 16
a a3 17
e e2 18
b b2 19
a a4 20
b b3 21

Column B1 has a formula
=A1&COUNTIF($A$1:A1,A1)
Put this in and drag down.
You can hide this helper column.

In another cell enter
=MATCH(VLOOKUP($D$1&ROW(),$B$1:$C$10,2,FALSE),$C$1:$C$10,0)
This matches the contents of D1 with Column B, returns column C and the row
of that.
Drag down for the second and subsequent instances of whaever is in D1.

What the *** does Traa Dy Liooar mean?

Mike
 
G

Gav123

Hi Mike,

It's a Manx (Isle Of Man) Gaelic term which translates as "Time Eough" or
"Time Galour"..according to google..
 
J

Jock

Thanks Mike, that's got it!
Traa dy liooar is Manx (Gaelic) for 'Time Enough' - nothing happens in a
hurry here!!
 
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