{=COUNT(--ISNUMBER(G95:G98))}

[Guest]

G95 = 1
G96 = e
G97 = 2
G98 = 3

The count of numbers should be 3. However, I get 4. G96 is formatted as
General. =ISNUMBER(G96) resolves to FALSE.

So???

 

[Guest]

But =SUMPRODUCT(--ISNUMBER(G95:G98)) resolves correctly.

Color me confused.

 

[Guest]

OK, I figured this out. COUNT counts ALL the 1s and 0s that the -- returns.
Not just the 1s. Duh.

Apologies.

Dave

 

[David Biddulph]

You've got 3 cells with TRUE (which you've converted to 1), and one cell
with FALSE (which you've converted to zero).
Zero and one are both numbers so are counted by the COUNT() function.

If you did =COUNT(G95:G98) you presumably get 3?

 

[David Biddulph]

Yes, that's right, 3 ones and one zero add up to 3.
Your other formula counted all 4, as one and zero are both numbers, so valid
for the COUNT() function.

 

[Guest]

Hi
RE: {=COUNT(--ISNUMBER(G95:G98))}, an array formula, counts the range
whether or not the data is a number, just like COUNTA

Peter

 

[Guest]

Yes, thanks. That should have been obvious to me.

Been a long day!
--
A hint to posters: Specific, detailed questions are more likely to be
answered than questions that provide no detail about your problem.

You've got 3 cells with TRUE (which you've converted to 1), and one cell
with FALSE (which you've converted to zero).
Zero and one are both numbers so are counted by the COUNT() function.

If you did =COUNT(G95:G98) you presumably get 3?

 

[Guest]

No, the issue is that the -- coerces the ISNUMBER function to return 1s for
TRUE and 0s for FALSE and so COUNT counts ALL the 1s and 0s. That COUNT may
or may not function like COUNTA in this instance is not the issue. COUNT is
only counting numbers here.

Dave

 

[T. Valko]

I would probably always use Sumproduct, but this array formula will work:

=COUNT(1/ISNUMBER(A1:A5))

Biff