#N/A - remove it

Experts, how could I remvove the #N/A that I get in the result?  Is it IFERROR?  

=IF(AND($F154>$I$19,$C154<$J$19),IF($G154="USD",$H154,(IF($G154=$H$4,$H154*$I$4,(IF($G154=$H$5,$H154*$I$5,(IF($G154=$H$6,$H154*$I$6,(IF($G154=$H$7,$H154*$I$7,(IF($G154=$H$8,$H154*$I$8,(IF($G154=$H$9,$H154*$I$9,(IF($G154=$H$10,$H154*$I$10,(IF($G154=$H$11,$H154*$I$11,(IF($G154=$H$12,$H154*$I$12,(IF($G154=$H$13,$H154*$I$13,(IF($G154=$H$14,$H154*$I$14,(IF($G154=$H$15,$H154*$I$15,(IF($G154=$H$16,$H154*$I$16,(IF($G154=$H$17,$H154*$I$17,(IF($G154=$H$18,$H154*$I$18,0))))))))))))))))))))))))))))))),0)
pdvsaProject financeAsked:
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jimyXCommented:
=IF(ISERROR(FORMULA),"ERROR","NOT ERROR")
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Patrick MatthewsCommented:
pdvsa,

In Excel 2007 or later you could use IFERROR to return an alternate value:

=IFERROR(IF(AND($F154>$I$19,$C154<$J$19),IF($G154="USD",$H154,(IF($G154=$H$4,$H154*$I$4,(IF($G154=$H$5,$H154*$I$5,(IF($G154=$H$6,$H154*$I$6,(IF($G154=$H$7,$H154*$I$7,(IF($G154=$H$8,$H154*$I$8,(IF($G154=$H$9,$H154*$I$9,(IF($G154=$H$10,$H154*$I$10,(IF($G154=$H$11,$H154*$I$11,(IF($G154=$H$12,$H154*$I$12,(IF($G154=$H$13,$H154*$I$13,(IF($G154=$H$14,$H154*$I$14,(IF($G154=$H$15,$H154*$I$15,(IF($G154=$H$16,$H154*$I$16,(IF($G154=$H$17,$H154*$I$17,(IF($G154=$H$18,$H154*$I$18,0))))))))))))))))))))))))))))))),0),"N/A")

That said, you should first understand what the cause of that error is, and determine whether or not simply suppressing the error is the right move for your design.

I would also try to avoid so many nested IF expressions.  You may understand what this formula is doing now, but if you have to edit this a year from now, good luck unraveling the logic--I know I would struggle to :)

Patrick
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AnilData ManagerCommented:
Other less elegant solutions (depends on the point of view) is to hide the N/A using conditional formatting to set the font color the same as the background.
IFERROR is Excel 2007 onwards only.

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pdvsaProject financeAuthor Commented:
Yes those nested IF's are a tough one.  I inherited this Excel spreadsheet and am trying to udnerstand it.  I am using Excel 07 and think IFERROR is best.  
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Saqib Husain, SyedEngineerCommented:
Try to use this formula instead of the monster formula

=IF(AND($F154>$I$19,$C154<$J$19),IF($G154="USD",$H154,$H154*VLOOKUP($G154,$H$4:$I$18,2,0)),0)

and if it works you can apply the #NA check (Not tested)

=iferror(IF(AND($F154>$I$19,$C154<$J$19),IF($G154="USD",$H154,$H154*VLOOKUP($G154,$H$4:$I$18,2,0)),0),"")


Saqib
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krishnakrkcCommented:
Hi,

=IFERROR(IF(AND($F154>$I$19,$C154<$J$19),IF($G154="USD",$H154,INDEX(I4:I18,MATCH(G154,H4:H18,0))*H154),0),"")

Kris
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Saqib Husain, SyedEngineerCommented:
Kris, why use index and then match if you can do it in a single vlookup?

Saqib
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krishnakrkcCommented:
Hi,

Experts say INDEX/MATCH works faster than VLOOKUP.

Kris
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Saqib Husain, SyedEngineerCommented:
Kris, I am not sure about that but I accept it.

Saqib
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Saqib Husain, SyedEngineerCommented:
Kris, I have made a quick search and what I have understood is that as far as speed is concerned there is almost no difference between the two.

If, however, there are a number of such lookups to be performed on a given number then the result of the match should be stored and used in seperate index functions. This will give a significant improvement in performance.

I am open to further comments.

Saqib
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Patrick MatthewsCommented:
INDEX/MATCH can perform faster than VLOOKUP, especially for exact matches.  It also allows the reference column to be other than the leftmost in the lookup table.

That said, it is a heck of a lot easier to tell people how to use VLOOKUP than how to use INDEX/MATCH :)
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krishnakrkcCommented:
Hi Saqib,

I google it and found this:

http://www.decisionmodels.com/optspeede.htm

My statement is not correct as far as speed is concern, although they recommend INDEX/MATCH.

Kris
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pdvsaProject financeAuthor Commented:
thank you...
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