IO_Dork
asked on
vlookup then take Max result
I have seen this else where, but I am having difficultly translating it to my formula. I need to modify my formula to first do a vlookup, then when it finds more than one matching cell in the row to figure out which has the maxium value and pick that cell to return in the vlookup match result.
My real issue is not that I need a max result but to ignore matches where the corresponding data to return is either blank or zero. But I figured integrating the Max function with vlookup was the best solution.
Here is my current vlookup formula that needs to be modified:
=(IF(ISERROR(VLOOKUP($Q2,B ank_SL_EQ, 5,FALSE)), "",VLOOKUP ($Q2,Bank_ SL_EQ,5,FA LSE)))
My real issue is not that I need a max result but to ignore matches where the corresponding data to return is either blank or zero. But I figured integrating the Max function with vlookup was the best solution.
Here is my current vlookup formula that needs to be modified:
=(IF(ISERROR(VLOOKUP($Q2,B
PS - just change line 27 to:
maxVLookup = vbnullstring 'if not found
if you want a failed lookup to return blank. That will save you on all the IF(ISERROR coding.
Dave
maxVLookup = vbnullstring 'if not found
if you want a failed lookup to return blank. That will save you on all the IF(ISERROR coding.
Dave
ASKER
Very Awesome!! Simple, Clean, and Elegant solution.
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ASKER
I will try the array formula as the VBA code (although nice) seems to take an extraordinarily long time to calculate (it took so long to calculate that I just end tasked Excel)...unless there is something going on with my PC right now.
ASKER
How do I get this to work when I have 8000 rows of data on both sheets....I have to hit shft+ctrl enter for each of the 8000 cells that I enter this formula into? if I try to do it like you normally would with an array - select all cells then hit f2 and type the formula then hit enter, all the 8000 cells with the formula result in zero...what am I missing here?
Please see the attached sample file.
I have defined a Name, Bank_SL_EQ, as A1:E30. Your named range is obviously much larger.
In Q2:Q6, I have various index values I want to use for the "max lookup".
To get the formulas working, I did this:
1) In R2, I entered
=MAX(IF(INDEX(Bank_SL_EQ,, 1)=Q2,INDE X(Bank_SL_ EQ,,5),"") )
and used Ctrl+Shift+Enter
2) I copied R2
3) I select R3:R6 and hit Enter to do the paste
Q-27632466.xls
I have defined a Name, Bank_SL_EQ, as A1:E30. Your named range is obviously much larger.
In Q2:Q6, I have various index values I want to use for the "max lookup".
To get the formulas working, I did this:
1) In R2, I entered
=MAX(IF(INDEX(Bank_SL_EQ,,
and used Ctrl+Shift+Enter
2) I copied R2
3) I select R3:R6 and hit Enter to do the paste
Q-27632466.xls
I would think the array function Patrick's teed up would be faster, though if your spreadsheet is large, there may still be a "wait". If so, one other way to speed it up is to revert to the VBA approach, using VBA to post results in the cells that you can update with a button or activate tab. In that way, there would be no formulas, just values as a result of the calc.
FYI only - The VBA version provides 1st or last instance with nonzero/nonblank results, where the array function provides the max result from any instance.
Patrick - thanks for jumping in here - a great learning for me. Is there a way to "twist" this to find instance? e.g., find the 2nd instance or last instance of the match?
Dave
FYI only - The VBA version provides 1st or last instance with nonzero/nonblank results, where the array function provides the max result from any instance.
Patrick - thanks for jumping in here - a great learning for me. Is there a way to "twist" this to find instance? e.g., find the 2nd instance or last instance of the match?
Dave
if you can change your range names to look at the first column, then the column in question, the INDEX function is not needed at all...
E.g., Bank_SL_EQ_Col1 is the first column and Bank_SL_EQ_Col5 is the column to lookup:
=MAX(IF(Bank_SL_EQ_Col1=Q2 ,Bank+SL_E Q_Col5,"") )
Ctrl+Shift+Enter to confirm
The INDEX function should be super fast, but this is the only thing I can think of that might make it faster...
Dave
E.g., Bank_SL_EQ_Col1 is the first column and Bank_SL_EQ_Col5 is the column to lookup:
=MAX(IF(Bank_SL_EQ_Col1=Q2
Ctrl+Shift+Enter to confirm
The INDEX function should be super fast, but this is the only thing I can think of that might make it faster...
Dave
ASKER
Thanks Patrick and Dave.
Patrick, I did what you said, just copy the first formula that I configure as an array formula and then paste it all the way down....works perfectly, Q2 changes in sequence...q3,q4,q5,q6, etc. And it updated just as fast as a regular vlookup...plenty fast.
Although, I really should be evaluating the matches for nonzeros and nonblanks, i think this index formula should do for now...i don't expect to need to have a formula choose between lower or higher values on matches...i expect the data will either be nonblanks/nonzeros or blanks/zeros. If i run into the former...then back to the drawingboard for me.
Dave, I like your VBA, looks like it will be good for use where I am only using it on a 1:N row lookup situation.
Thanks again all.
Patrick, I did what you said, just copy the first formula that I configure as an array formula and then paste it all the way down....works perfectly, Q2 changes in sequence...q3,q4,q5,q6, etc. And it updated just as fast as a regular vlookup...plenty fast.
Although, I really should be evaluating the matches for nonzeros and nonblanks, i think this index formula should do for now...i don't expect to need to have a formula choose between lower or higher values on matches...i expect the data will either be nonblanks/nonzeros or blanks/zeros. If i run into the former...then back to the drawingboard for me.
Dave, I like your VBA, looks like it will be good for use where I am only using it on a 1:N row lookup situation.
Thanks again all.
IO_Dork - Patrick's' formula gets the MAX from all the duplicate matches (if they are dupe's) so you'll always get the highest valued match.
Just change your data up and see what results you get - you don't have to wait on some point in the future to see if it will/won't work for you.
Cheers,
Dave
Just change your data up and see what results you get - you don't have to wait on some point in the future to see if it will/won't work for you.
Cheers,
Dave
IO_Dork,
My formula will return a zero if in fact the max value for a given subset is zero, or if there are only blanks (or if there are no corresponding values). To be honest, I did not really see the point of complicating the formula to test for zeroes or blanks, as the MAX function handles this implicitly.
Dave,
You asked how one could return the xth, yth, or zth value. Here is one way, although barryhoudini probably has a more elegant way.
2nd value:
{=INDEX(INDEX(Bank_SL_EQ,, 5),SMALL(I F(INDEX(Ba nk_SL_EQ,, 1)=Q2,ROW( INDEX(Bank _SL_EQ,,1) ),""),2),1 )}
3rd value:
{=INDEX(INDEX(Bank_SL_EQ,, 5),SMALL(I F(INDEX(Ba nk_SL_EQ,, 1)=Q2,ROW( INDEX(Bank _SL_EQ,,1) ),""),3),1 )}
4th:
{=INDEX(INDEX(Bank_SL_EQ,, 5),SMALL(I F(INDEX(Ba nk_SL_EQ,, 1)=Q2,ROW( INDEX(Bank _SL_EQ,,1) ),""),4),1 )}
Last value:
{=INDEX(INDEX(Bank_SL_EQ,, 5),LARGE(I F(INDEX(Ba nk_SL_EQ,, 1)=Q2,ROW( INDEX(Bank _SL_EQ,,1) ),""),1),1 )}
Note that those interior INDEX calls can be eliminated either with structured references to Table columns, or by creating a Name to cover each column independently.
Patrick
My formula will return a zero if in fact the max value for a given subset is zero, or if there are only blanks (or if there are no corresponding values). To be honest, I did not really see the point of complicating the formula to test for zeroes or blanks, as the MAX function handles this implicitly.
Dave,
You asked how one could return the xth, yth, or zth value. Here is one way, although barryhoudini probably has a more elegant way.
2nd value:
{=INDEX(INDEX(Bank_SL_EQ,,
3rd value:
{=INDEX(INDEX(Bank_SL_EQ,,
4th:
{=INDEX(INDEX(Bank_SL_EQ,,
Last value:
{=INDEX(INDEX(Bank_SL_EQ,,
Note that those interior INDEX calls can be eliminated either with structured references to Table columns, or by creating a Name to cover each column independently.
Patrick
Patrick. Much thanks!
IO_Dork-pls req attention to award points to Patrick's teachings
Dave
IO_Dork-pls req attention to award points to Patrick's teachings
Dave
ASKER
thanks, will do Dave.
Patrick, I tried your instance vlookup equivalent, and it worked when the table was starting on row 1, but didn't if I moved the table. I think the problem might be with:
ROW(INDEX(Bank_SL_EQ,,1)) <- this portion returns a rows list, but the list should start with 1, howver if Bank_SL_EQ doesn't start on row 1 it would not work.
I think it should be something like
ROW(1:12) where Bank_SL_EQ is 12 rows high.
So, IMHO (happy to stand corrected), but the second instance should be (independent of whether table starts on row 1 or another row:
{=INDEX(INDEX(Bank_SL_EQ,, 2),SMALL(I F(INDEX(Ba nk_SL_EQ,, 1)=$H19,RO W(OFFSET($ A$1,,,ROWS (Bank_SL_E Q))),""),2 ),1)}
See attached & thanks for the lesson, as always, I learn alot from you.
Dave
findNthInstanceVlookup.xls
ROW(INDEX(Bank_SL_EQ,,1)) <- this portion returns a rows list, but the list should start with 1, howver if Bank_SL_EQ doesn't start on row 1 it would not work.
I think it should be something like
ROW(1:12) where Bank_SL_EQ is 12 rows high.
So, IMHO (happy to stand corrected), but the second instance should be (independent of whether table starts on row 1 or another row:
{=INDEX(INDEX(Bank_SL_EQ,,
See attached & thanks for the lesson, as always, I learn alot from you.
Dave
findNthInstanceVlookup.xls
Dave,
Yes, my "Nth instance" formulae require an adjustment if the range does not start in Row 1. Fortunately, the adjustment is very simple. This would be the 2nd instance formula:
{=INDEX(INDEX(Bank_SL_EQ,, 5),SMALL(I F(INDEX(Ba nk_SL_EQ,, 1)=Q2,ROW( INDEX(Bank _SL_EQ,,1) )-1,""),2) ,1)}
The above assumes that the range starts in Row 2. See how I applied a -1 adjustment to the ROW() call. Had the range started in Row 3, then a -2 adjustment would be needed.
:)
Patrick
Yes, my "Nth instance" formulae require an adjustment if the range does not start in Row 1. Fortunately, the adjustment is very simple. This would be the 2nd instance formula:
{=INDEX(INDEX(Bank_SL_EQ,,
The above assumes that the range starts in Row 2. See how I applied a -1 adjustment to the ROW() call. Had the range started in Row 3, then a -2 adjustment would be needed.
:)
Patrick
ASKER
matthewspatrick:
how would I modify {=MAX(IF(INDEX(Bank_SL_EQ, ,1)=Q2,IND EX(Bank_SL _EQ,,5),"" ))} to lookup the max value of column 5 of the named range but to then return the contents of column 18?
Not sure if I need to reopen a new question. let me know and I will.
how would I modify {=MAX(IF(INDEX(Bank_SL_EQ,
Not sure if I need to reopen a new question. let me know and I will.
You'll need a VBA function to find the instance that (either first has data, or the last instance that has data):
Open in new window
Usage:
=maxvlookup(lookup_value,t
e.g.,
=maxvlookup($E4,$A$2:$B$10
=maxvlookup($E4,$A$2:$B$10
See example workbook attached.
Dave
maxVlookup-r1.xls