Sum or Average with #N/A cells

[PaulinaDi]

I'm using a formula to bring results from another worksheet but in some cases
I get the #N/A result as I don´t have data on the original worksheet. To get
the graphics on the final worksheet I use the formula with NA() not to give
me 0 values on the chart and I also use the conditional formula to get the
#N/A results just like the cells were empty (the same color I use for that
cell) but when I print my page, I get the #N/A in black (so I can see them)
and additional I'm not able to get a SUM or AVERAGE on each column as I get
the #N/A for those cells with that mark.

Two examples of the formula I'm using are:

=IF(SUMPRODUCT(--('2009'!$B$8:$B$256>=$O14),--('2009'!$B$8:$B$256<$O15))=0,NA(),SUMPRODUCT(--('2009'!$B$8:$B$256>=$O14),--('2009'!$B$8:$B$256<$O15),('2009'!E$8:E$256))/SUMPRODUCT(--('2009'!$B$8:$B$256>=$O14),--('2009'!$B$8:$B$256<$O15)))

=IF(L9/L8-1=0,NA(),L9/L8-1)

How may I get the SUM or the AVERAGE for that column and how may I print my
file without seeing the #N/A's in black?

 

[T. Valko]

To sum a range that contains errors:

=SUMIF(A1:A10,"<1E100")

To average a range that contains errors:

Array entered**

=AVERAGE(IF(ISNUMBER(A1:A10),A1:A10))

** array formulas need to be entered using the key combination of
CTRL,SHIFT,ENTER (not just ENTER). Hold down both the CTRL key and the SHIFT
key then hit ENTER.

To not print errors:

In Excel 2002:

File>Page Setup>Sheet tab
Under Print...Cell errors as>select blank
OK

 

[Sheeloo]

You can use ISNA to suppress #N/A errors... use it like this
=IF(ISNA(your_formula),"",your_formula)

ISNA returns true if the formula within ISNA returns #N/A

 

[PaulinaDi]

Thanks Sheeloo, but the problem with this formula is that I get the chart
with a line in zero although there is no value, but it helps me with the
AVERAGE formula.

What I really need is to make the formula not to show the #N/A value when I
print the file (as it doesn´t matter I use the conditional formatting, if my
cell is for example in gray I get the #N/A in black) and not to appear a line

 

[PaulinaDi]

Thanks Valko. What does the "<1E100" indicator means? Because that worked for
the SUM columns but I don´t know where does it come from in order to use it
in any other spreadsheet I have the same problem. Could you pls answer me
this question?

Regarding the AVERAGE formula, why should I use the Array option and not
just the AVERAGE formula alone? What the array make?

And finally, I use Excel 2000 so I don´t have the File>Page Setup>Sheet tab

 

[T. Valko]

Replied to your other post