At 17:40 19/09/2013 +0200, Regina Henschel wrote:
Brian Barker schrieb:
At 21:28 18/09/2013 +0100, Mark Bourne wrote:
Carl Paulsen wrote:
I'm trying to build an IF statement that tests if a condition
exists in two columns, and assigns the number 1 if it does, and 0
if not. The columns being checked are vLookups which return #N/A
if an ID is not found in another table. I'm trying to search for
cases where an ID# IS returned in two columns meaning the record
shows up in both tables.
I can't figure out the syntax for this. I've tried
IF(AND(A1<>"#N/A"; B1<>"#N/A"),1,0) on both the vlookup formula
columns and on columns that are pasted without formulas. No luck
yet. Can someone chime in on this?
Although the cell is displayed as "#N/A", it's not a text value
but an error code indicating that a value is not available. ISNA()
returns TRUE if a cell contains the #N/A error code, and FALSE otherwise.
Indeed. But it's simpler than that, in fact. If you apply De
Morgan's laws to the expression
it simplifies to
so we can simplify your formula to
And if you exchange the then- and the else-expression, you can drop
the NOT function.
And we can also similarly improve my logical expression (that you snipped):
... where the subtraction of the logical value from one has the
effect of negating it.
Apart from its brevity, this has the additional advantage that it
becomes a numeric expression so will display as 0 or 1 by default
(not as FALSE or TRUE), as the questioner required.
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