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Equation Efficiency?
In trying to create "validated" spreadsheets for my company that meet their
rigorous criteria I frequently run into the problem of wanting more than seven IF statements in a single equation. Here's an example where I've reached the seven statement limit but need one mo =IF(AND(F31="N/A",F32="N/A"),"N/A",IF(AND(F31="ND",F32="ND"),"ND",IF(OR(F31="Te xt Error",F32="Text Error"),"Text Error",IF(OR(F31="Numeric Error",F32="Numeric Error"),"Numeric Error",IF(F31="ND", F32, IF(AND(F310.1049,F32<=0.1049),F31,IF(AND(F320.10 49,F31<=0.1049),F32,AVERAGE(F31:F32)))))))) I'm sure there's a way to be more efficient with the given criteria but I'm not fluent enough in excel equations to shorten it. Given enough time I have shortened these in the past but it's not pretty. Are there any tips or tricks that could help me be more efficient with my equations? Criteria to meet for a simple AVERAGE calculation: if both cells are "N/A" return "N/A" if both cells are "ND" return "ND" if a text value is entered other than "ND" return "Text Error" if a negative value is entered return "Numerical Error" if one cell is "ND" return the other (this usually takes two IF statements for me) if the calculated value from one cell is greater than the specified limit and one is less, don't average and return the high value if both cells are above the limit, average as normal |
#2
Posted to microsoft.public.excel.worksheet.functions
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Equation Efficiency?
Two suggestions:
1. If upgrading to Excel 2007 is a possibility, go for it. It will allow 64 nested Ifs. That should accomodate the most prolific if'er. 2. In my pre-2007 days, I would evaluate criteria in seperate columns. If the result was True, I would assign a value of 1. 0 if False. Then I would use a final If to perform the final calculation based on the individual columns. =IF(AND(AA1=0,AB1=1,AC1=1... etc. Your formula looks to be fairly compact as it is. If your problem is an 'If' limitation, then there is not a great deal that I know of. Hopefully someone else can provide a better answer. Finally, you might want to look into VBA for your answer. You can do some pretty wild stuff if you can learn it or hire someone already familiar. -- Regards, PJ Please rate this post using the vote buttons if it was helpful. "Ithaca" wrote: In trying to create "validated" spreadsheets for my company that meet their rigorous criteria I frequently run into the problem of wanting more than seven IF statements in a single equation. Here's an example where I've reached the seven statement limit but need one mo =IF(AND(F31="N/A",F32="N/A"),"N/A",IF(AND(F31="ND",F32="ND"),"ND",IF(OR(F31="Te xt Error",F32="Text Error"),"Text Error",IF(OR(F31="Numeric Error",F32="Numeric Error"),"Numeric Error",IF(F31="ND", F32, IF(AND(F310.1049,F32<=0.1049),F31,IF(AND(F320.10 49,F31<=0.1049),F32,AVERAGE(F31:F32)))))))) I'm sure there's a way to be more efficient with the given criteria but I'm not fluent enough in excel equations to shorten it. Given enough time I have shortened these in the past but it's not pretty. Are there any tips or tricks that could help me be more efficient with my equations? Criteria to meet for a simple AVERAGE calculation: if both cells are "N/A" return "N/A" if both cells are "ND" return "ND" if a text value is entered other than "ND" return "Text Error" if a negative value is entered return "Numerical Error" if one cell is "ND" return the other (this usually takes two IF statements for me) if the calculated value from one cell is greater than the specified limit and one is less, don't average and return the high value if both cells are above the limit, average as normal |
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