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Platinum Member 
What is "Basis Value", and what page in the documentation is it covered? 3 of us have looked and couldn't find it. Thank you. WebFOCUS 7.6.11, Linux, HTML, PDF, AHTML, EXCEL  

Master 
Basis is the standard on which 100% is based. It prevents dividebyzero in situations where you might have a target of 0, because in descending measures your target is the denominator in the calculation. If you set a basis of 10 on a descending measure, and the target is 0, and your actual is 10, then you are at 0% achieved. If the basis were 20, you'd be at 50% achieved. Not sure why this isn't in the doc but we'll correct that. Also please see http://forums.informationbuild...=363101451#363101451 and http://forums.informationbuild...=369104021#369104021 There is a search function on the Forum. That's how I found these. thanks Bob Jude Ferrante Director of Business and Development WebFOCUS Performance Management Bob_Ferrante@ibi.com 9173395105 I'll take any questions about PMF  business or technical  anytime!  

Platinum Member 
Thanks Bob. We still were a little unsure, so for clarification, are either of these interpretetations correct? 1. In the situation where a descending measure's target is zero, the basis value is used instead of the target value to avoid division by zero. In this case is the formula to calculate Percent of Target Reached (% Achieved): (Basis  Actual) / Basis? This would would work for the first 2 examples below. Basis Actual Target % Achieved     10 10 0 0% 10 20 0 50% 20 10 0 50% How would this work if the basis were 20 and the actual were 10? Using (Basis  Actual) / Basis, (10  20) / 20 = 0.5, which is 50%. 2. The other interpretation we came up with was: (Actual  Basis) / (Basis  Target) which would be used regardless of whether the target is 0 or not for a descending measure. We also need to be able to explain all this to our end users who supply the info we use to create the measures. Thank you. WebFOCUS 7.6.11, Linux, HTML, PDF, AHTML, EXCEL  

Platinum Member 
As Bob said, Basis is used for descending Measures when the Target is 0 to avoid divide by 0 situations. The formula for % Reached is ((BASIS ACTUAL) / (BASIS  TARGET)) * 100.0. So expanding on your data: Basis Actual Target % Reached     10 20 0 100% 10 15 0 50% 10 10 0 0% 10 5 0 50% 10 0 0 100% You can also use Basis when your Target is very small to avoid excessively large values of % Reached. EricH  

Platinum Member 
Thank you, Eric. WebFOCUS 7.6.11, Linux, HTML, PDF, AHTML, EXCEL  

Master 
For some reason I cannot fathom, a complete description of Basis isn't in the doc... PMF calculates Percent Reached for descending Meausres by dividing the Target into the Actual value and multiplying the result by 100. If the descending Measure had a Target of 0, this would have resulted in a Divide by Zero, which would have been mathematically invalid. Special handling is therefore required for Measure Targets that are set to zero. In cases where you had a target of 1 or a fractional target, and an Actual that was many multiples higher (e.g., a Target of .05 and an Actual of 25), you would see a seemingly abnormally high Percent Reached (sometimes so high as to overflow and display ******* as the Percent Reached). Basis controls where you would have zero Percent Reached. The basis is the point you would exceed with your Descending Measure greater than which your Percent Reached would start moving into the negative. Any Actuals that were greater would show a negative Percent Reached; any that were less will show a positive Percent Reached. Setting the Basis gives you control over how Percent Reached is calculated so you can see more reasonablelooking Percents Reached. How Descending Measure Basis Handling Works The special handling lets you pick a defined numeric value as your zero crossing for Percent Reached. The value can be sufficiently large that you would never exceed it, or you can adjust it as needed until your numbers look reasonable. If you set a Basis for a Descending Measure, the calculation for Percent Reached subtracts the Actual from the Basis amount and the Target for the Basis amount, which rebalances the Percent Reached to give you more control when Target numbers get very small.  What this means: If the target for your descending measure SUMS out to equal the basis exactly (and note that if your measure uses continuous rather than discrete values the odds of this are QUITE LOW), you would in concept hit a divide by zero but you never do, since we defend against divide by zero deterministically by setting set Pct Reached to 0 rather than having "undetermined value" for an answer (and/or having WebFOCUS throw an error halting processing). Hope this helps. Bob Jude Ferrante Director of Business and Development WebFOCUS Performance Management Bob_Ferrante@ibi.com 9173395105 I'll take any questions about PMF  business or technical  anytime!  

<cae> 
Thank you Bob. I have now moved on to our "Range" measures. I was trying to figure out the formula for %target reached. I thought I had it: (TargetABS(ActualTarget))/Target. This works most of the time but still not for everything. Do you know the formula? Thanks,  
Master 
Here's a tip: Have a look in A_COMPUTE_RPT_VARS.FEX and its children. All the answers to your questions are there. :) Bob Jude Ferrante Director of Business and Development WebFOCUS Performance Management Bob_Ferrante@ibi.com 9173395105 I'll take any questions about PMF  business or technical  anytime!  

<cae> 
Hi Bob, I guess I need to clarify that I am a Business Analyst, not a developer. I do not have the capability to look at system files or code. If there is a manual I could look there. Otherwise I need to try to get help from other people. Thanks  
Master 
I'd love to... but am in the middle of getting PMF 5.3.1 ready to ship. Anyone else want to help her right away? Otherwise, I'll get back to you next week. Bob Jude Ferrante Director of Business and Development WebFOCUS Performance Management Bob_Ferrante@ibi.com 9173395105 I'll take any questions about PMF  business or technical  anytime!  

Member 
I am working on Linux.It has some problem over documents configurations.It is terminated by entering a function command.  

Master 
Basically gross percent reached is: 100.0  ABS(SUM OF(Target_Value)  SUM OF(Actual_Value))/SUM OF(Target_Value) In the case of percents and rations you have to take the division into numerators and denominators into account 100.0  ABS(SUM OF(Target_Numerator_Value)/SUM OF(Target_Denominator_Value))  (SUM OF(Actual_Numerator_Value)/SUM OF(Actual_Denominator_Value))/(SUM OF(Target_Numerator_Value)/SUM OF(Target_Denominator_Value)) If Target ever SUMs to a zero amount we set it to 0. This doesn't show all the breakpoints we calculate to draw the colours (we do those based on applying thresholds you set), but all use the same pattern. Hope this helps. Note that it's pretty tedious to type this stuff into this primitive online editor so I hope I didn't make any typing errors. But this should give you an idea. Bob Jude Ferrante Director of Business and Development WebFOCUS Performance Management Bob_Ferrante@ibi.com 9173395105 I'll take any questions about PMF  business or technical  anytime!  

<cae> 
Bob, Thankyou, I think. This will be tough to test for percents and ratios. A little challenge to keep me busy.  
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