Hi,

I have a filtered range of data which contains cells in columns that error
eg. #NA. =Subtotal(9,a1:a500) works fine if there are no errors and I'd
thought an array formula {=subtotal(9,if(isnumber(a1:a500),a1:a500))} would
have worked to return the sum of all values in the filtered list whereby
excluding the errors - but alas, this doesn't work.

Can this be done?

Thanks, Rob