VLOOKUP and INDEX/MATCH not functioning (please help)

Purpose: to compare values from column ‘unknown’ to values from column ‘directory’ and to return corresponding value from column ‘name’.
There is one condition:
The numbers from the 'unknown' column must be looked up +/-0.001


My solution is to Truncate them to the 3rd decimal and try three vlookups - real, +0.001, -0.001
If you have another solution please let me know!



Tried both VLOOKUP and INDEX/MATCH and both return the same result:
26 matches for columns for the original number truncated to 3rd decimal (columns D, E, F)
60 matches for the number truncated to 3rd decimal +0.001 (columns H, I, J)
5 matches for the number truncated to 3rd decimal -0.001 (columns L, M, N)



PROBLEM
No match found in ROW 184. However, you can see visually in row 184 column C (named 'unknown') the value is 444.383, and when I look it up it in column I (which is 444.383+0.001) should return a match as there is a value 444.384 in column A ('named directory').

Why on row 184 neither VLOOKUP or MATCH/INDEX are NOT working?
Obviously there might be more matches, which are not shown.


PLEASE NOTE: same thread exists in the following forums:

• https://www.mrexcel.com/forum/excel-...ease-help.html
• https://stackoverflow.com/questions/...urning-a-value

• https://www.excelguru.ca/forums/show...5645#post35645

Many of us are unable or unwilling to access file-sharing sites, so attach the file here, please.

Unfortunately the attachment icon doesn't work at the moment, so to attach an Excel file you have to do the following: just before posting, scroll down to Go Advanced and then scroll down to Manage Attachments. Now follow the instructions at the top of that screen.

=iferror(index($b:$b,aggregate(15,6,row($a$2:$a$2654)/(($a$2:$a$2654=$d2)+($a$2:$a$2654=$d2-0.001)+($a$2:$a$2654=$d2+0.001)),1)),"")

If that takes care of your original question, please select Thread Tools from the menu link above and mark this thread as SOLVED. Thanks.

Your post does not comply with Rule 8 of our Forum RULES. Do not crosspost your question on multiple forums without including links here to the other threads on other forums.

Cross-posting is when you post the same question in other forums on the web. The last thing you want to do is waste people's time working on an issue you have already resolved elsewhere. We prefer that you not cross-post at all, but if you do (and it's unlikely to go unnoticed), you MUST provide a link (copy the url from the address bar in your browser) to the cross-post.

Expect cross-posted questions without a link to be closed and a message will be posted by the moderator explaining why. We are here to help so help us to help you!

Read this to understand why we ask you to do this, and then please edit your first post to include links to any and all cross-posts in any other forums (not just this site).

Hi again,

I still have a question for the same excel file:

Both formulas work for eliminating errors in the vlookup:
=IFERROR(IFERROR(VLOOKUP(TRUNC(E2,3),$A:$B,2,FALSE), VLOOKUP(TRUNC(E2-0.001,3),$A:$B,2,FALSE)), VLOOKUP(TRUNC(E2+0.001,3),$A:$B,2,FALSE))
=IFERROR(INDEX($B:$B,AGGREGATE(15,6,ROW($A$2:$A$2654)/(($A$2:$A$2654=$F2-0.001)+($A$2:$A$2654=$F2+0.001)),1)),"")

However, since the number from Directory (Column A) varies (exact, + and – 0.001) it is not known the exact digit associated with the result. I need to know the number associated with the matches, if it is exact number, + or – 0.001. How do I do that?