Question

Simplifying a formula

Asked by: saurabh726

I Got two formulas to get my final score which works perfectly fine and get me the result that im expecting, However i just wanted to check is there further easy formula to do this, I'm looking for a formula approach only since i can make the user defined function myself.

What basically im trying to do is rate the score that i got from a score of 1 to 5 on a incremental basis and incremental starts from first limit and ends at the second last limit.

Enclosed is the sample file for your reference.

Saurabh...

Formula --> 1
=IF(C4>=$F$4,$H$4,IF(C4>=$F$5,($H$5+((C4-$F$5)/($F$4-$F$5))),IF(C4>=$F$6,($H$6+((C4-$F$6)/($F$5-$F$6))),IF(C4>=$F$7,($H$7+((C4-$F$7)/($F$6-$F$7))),(IF(C4<>0,1,0))))))
 
Formula --> 2
=IF(LOOKUP(C4,$I$4:I$8,J$4:J$8)=1,1,MIN(SUM(LOOKUP(C4,$I$4:$I$8,$J$4:$J$8),(C4-LOOKUP(C4,$I$4:$I$8,$I$4:$I$8))/(LOOKUP(C4,$I$4:$I$8,$K$4:$K$8)-LOOKUP(C4,$I$4:$I$8,$I$4:$I$8))),5))
                                  
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Asked On
2009-09-08 at 09:14:06ID24715353
Topic

Microsoft Excel Spreadsheet Software

Participating Experts
3
Points
500
Comments
16

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Answers

 

by: matthewspatrickPosted on 2009-09-08 at 09:34:53ID: 25283589

Hello Saurabh,

I copied your rating grid to F11:K17, and sorted it on the From column ascending.  I then used this formula
to replicate your result:

=IF(OR(MATCH(C4,$F$13:$F$17,1)=1,C4>=MAX($F$13:$F$17)),VLOOKUP(C4,$F$13:$H$17,3),VLOOKUP(C4,$F$13:$H$17,3)+(C4-VLOOKUP(C4,$F$13:$H$17,1))/(INDEX($F$13:$F$17,MATCH(C4,$F$13:$F$17,1)+1)-VLOOKUP(C4,$F$13:$H$17,1)))

I like that, because if you ever end up with more rows in the grid, you would just need to update the range
references, but the logic stays the same.

BTW, if you want to allow prorating to the scores with a rating of 1...

=IF(C4>=MAX($F$13:$F$17),MAX($H$13:$H$17),VLOOKUP(C4,$F$13:$H$17,3)+(C4-VLOOKUP(C4,$F$13:$H$17,1))/(INDEX($F$13:$F$17,MATCH(C4,$F$13:$F$17,1)+1)-VLOOKUP(C4,$F$13:$H$17,1)))

Regards,

Patrick

 

by: saurabh726Posted on 2009-09-08 at 09:43:20ID: 25283678

Patrick,

You dont have to copy it and sort in the ascending order because if you see Column-i and k i have sorted them in ascending order. Thanks for posting but instead of lookup in this you have used a vlookup and then a range formila to do the same thing, sorry for not being clear at the first time by Simplifying i mean shorting the formula further then exisiting to what i have or using some other logic which is different then what im doing.

Saurabh

 

by: matthewspatrickPosted on 2009-09-08 at 09:50:38ID: 25283750

Hm.  I doubt you'll be able to shorten it, then, unless you write a UDF :)

 

by: saurabh726Posted on 2009-09-08 at 09:54:58ID: 25283796

Patrick, I thought so but still giving a try because trust me there are lot of genuises here which are full of surprises and have knocked me couple of times with the formulas which i never have thought of ... :-)

 

by: barryhoudiniPosted on 2009-09-08 at 11:37:30ID: 25284744

Hello Saurabh,

You could use FORECAST function to help with the interpolation, i.e.

=IF(C4>I$8,J$8,IF(C4<I$5,J$4,FORECAST(C4,OFFSET(J$4:J$8,MATCH(C4,I$4:I$8)-1,0,2,1),OFFSET(I$4:I$8,MATCH(C4,I$4:I$8)-1,0,2,1))))

regards, barry

 

by: matthewspatrickPosted on 2009-09-08 at 12:23:43ID: 25285249

<Speechless>

 

by: saurabh726Posted on 2009-09-08 at 13:38:48ID: 25285927

Barry,

Man you just simply bowl me out with the formulas, You are really in other league altogether when it comes to formula, Now i understood how does the forecast function work but im just a bit confused that how without array function you are able to get right values for offset.

Saurabh...

 

by: ssaqibhPosted on 2009-09-08 at 13:42:58ID: 25285966

I tried these array formulas and they seem to work

=MIN(MAX(IF(C4>$F$4:$F$7,$H$4:$H$7+IF(C4<=$F$4,(C4-$F$4:$F$7)/($F$3:$F$6-$F$4:$F$7))),1))

=MIN(MAX(IF(C4>$I$5:$I$8,$J$5:$J$8+(C4-$I$5:$I$8)/($I$6:$I$9-$I$5:$I$8)),1),5)

 

by: saurabh726Posted on 2009-09-08 at 13:49:18ID: 25286011

ssaqibh,

Nice approach, Didnt thought about using array formulas either, I'm on my way back home, Let me test it a bit and will post my findings.

Saurabh...

 

by: ssaqibhPosted on 2009-09-08 at 13:51:57ID: 25286033

..... I'm on my way back home....

At this hour?

From shopping or from work?

Saqib

 

by: barryhoudiniPosted on 2009-09-08 at 14:15:43ID: 25286250

Hello Saqib,

Top notch formulas.......

regards, barry

 

by: barryhoudiniPosted on 2009-09-08 at 14:34:30ID: 25286392

.......although I note that should you change the percentages so that they are less evenly distributed, e.g. instead of 59%, 62%, 65% and 68% you use 57%, 63%, 65% and 76% then I think my suggestion works but Saqib's doesn't.......

(given a "straight line" interpolation between each two percentages)

barry

 

by: saurabh726Posted on 2009-09-08 at 15:06:22ID: 25286571

Saqib,

From Work, i work for a US based MNC so primilarly my work timings are in evening hours my time which is Morning time US hours. Also i tried the formula and it worked till the time barry said the % are evenly distrubuted when i change them it goes crazy, However this still gives me an idea to use array which i will do possible once im back to office by refining the formula that you gave to get the figures out but appreciate your effort over this.

Barry, Thanks for testing this out and helping me over this.

Saurabh...

 

by: barryhoudiniPosted on 2009-09-08 at 15:29:32ID: 25286716

Here's another option which uses some elements of Saqib's suggestions.....but incorporates them in a LOOKUP, which I think gets the correct results whatever the percentages.....and also avoids CSE

=IF(C4>=I$8,J$8,IF(C4<I$5,J$4,LOOKUP(C4,I$5:I$7,$J$5:$J$7+(C4-$I$5:$I$7)/($I$6:$I$8-$I$5:$I$7))))

barry

 

by: ssaqibhPosted on 2009-09-08 at 16:05:50ID: 25286925

That formula was for what was given.

In the new scenario you may use

=MIN(MAX(IF((C4>$F$4:$F$7)*(C4<=$G$4:$G$7),$H$4:$H$7+IF(C4<=$F$4,(C4-$F$4:$F$7)/($F$3:$F$6-$F$4:$F$7))),1),5)

 

by: saurabh726Posted on 2009-09-09 at 05:57:50ID: 31626165

Thanks Guys for help on this Just wanted to think out of box which i was able to after the set of ideas i got.

20120131-EE-VQP-002

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