VLookup Enhancement

[Alan Perkins]

I have two suggestions to improve VLookup:

1. Add an optional parameter that provides a result if the Vlookup returns
NA so that you don;t need to wrap it in an If (ISNA...

2. Make the column offset capable of negative values so that you can offset
to the left of the reference column.

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http://www.microsoft.com/office/com...dg=microsoft.public.excel.worksheet.functions

 

[Bob Phillips]

I have two suggestions to improve VLookup:

1. Add an optional parameter that provides a result if the Vlookup returns
NA so that you don;t need to wrap it in an If (ISNA...

they have done that in Excel 2007 with the IFERROR function

=IFERROR(VLOOKUP(B1,K1:M10,2,FALSE),"")

2. Make the column offset capable of negative values so that you can
offset
to the left of the reference column.

Problem with that is you are the asking it to get a value from a column that
is not in lookup table, a problem It is easily simulated with

=INDEX(A;A,MATCH(lookup_value,B:C,0))

 

[T. Valko]

I like both of your suggestions but I wouldn't hold my breath hoping for
those to be implemented.

If you use excel 2007 you can use the IFERROR function to trap #N/A:

=IFERROR(VLOOKUP(A1,F1:G10,2,0),"")

Note that this will trap *all* errors, not just #N/A.

Much better than the pedantic:

=IF(ISNA(VLOOKUP(A1,F1:G10,2,0)),"",VLOOKUP(A1,F1:G10,2,0))

Another shorter alternative:

=IF(COUNTIF(F1:F10,A1),VLOOKUP(A1,F1:G10,2,0),"")

As far as the left lookup....

=INDEX(E1:E10,MATCH(A1,F1:F10,0))

 

[Alan Beban]

I have two suggestions to improve VLookup:
. . .
2. Make the column offset capable of negative values so that you can offset
to the left of the reference column.

If the functions in the freely downloadable file at
http://home.pacbell.net/beban are available to your workbook, you can use

=VLookupLeft

It also allows any column of the lookup array, rather than just the
lefthand column, to be used as the lookup column.

Alan Beban