Finding Optimal Combination In A Matrix
Nov 13, 2009
I've been assigned a task of finding a combination of three or four machines. For example AD,AJ,AQ, and AB would equal 7 therefore it would be the best combination of workstations for that cell. However, I'm having an issue that if AD, AJ, AQ, and AB are being selected more than once.
My question is, how can I analyze all the data and determine the best combination given the relationships for each row given the column.
3 = Absolutely Necessary
2 = Extremely Necessary
1 = Necessary
0 = Do not associate
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Aug 11, 2008
I need to optimize an Excel model with 5 variables each of which cam be any value from 1 to 20. The solution space, therefore, contains 3,200,000 combinations. I have a software(Palisade Risk) which can give out a random sampling of this solution space. I need to know how many combinations can be considered as a representative sample of this solution space - e.g. can it be 1%?.
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Jun 11, 2014
can buy stock glass in several standard sizes. Specifically:
12x16
16x20
20x24
22x28
24x30
24x36
26x32
32x40
36x48
40x60
I use these stock sizes - to cut custom sized pieces. Example - if I have a piece that calls for a 15x18 - I will take a 16x20 piece and cut it down. I have all different kinds of size combinations that come up and am looking for a way for Excel to calculate the most efficient stock size to start with. Trying to do so using a series of Vlookups and if then's - but seems to be overly complicated and not always accurate.
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Mar 23, 2014
I need to find the which two columns that give the greatest combination.
Row 2 shows some possible combinations, a total of combinations is 21.
Attached File : test.151515.xlsx
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Dec 14, 2012
The goal of this is to find the best combination of a captain (out of 5 possible choices), 5 crewmates (out of 25, no repeats), deck items (2 items, can be repeated, 20 total options), ram (1, out of 13), hull (1, 13 choices), and rudder (1, 7 choices)
Each choice in every category has 4 attributes - fighting, morale, seafaring, and speed. The ship parts also have a true/false field called "unlocked" - the false fields obviously can't be chosen.
A mission gives numbers saying what total attributes are needed for a 100% chance of success. If the mission has 2 attributes that are required (say seafaring and fighting, for instance) then it takes whichever chance of success is lowest and counts that as the mission success chance.
Example: A mission requires 2000 fighting and 2000 seafaring - I can reach 2000 fighting but 1500 seafaring, chance of success is 75%. It would be better for me to get a combination that gave me an 87% success rate in both fields.
How do I have excel go through every combination (and is that even plausable? I would imagine that being in the billions of combination choices) and highlight (turn a cell green or something) the combination that has the highest minimum chance of success in all fields?
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May 19, 2009
I am having a difficult time with a look up. It would be very hard to explain so I'll attach a copy of the section of the worksheet that the problem lies on with comments so you can see whats going on. The problem there is a numbered list with a reference number i can't seem to figure out a lookup that will look in the chart above and find the row associated to the reference number and according to how many before it have that reference number find a secondary reference number listed in the column above. The attachment should clear it up.
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Feb 17, 2009
On my example sheet it shows how many cables and how the cable length per job. What i need is for the hour/job column to be populated from the Hours sheet by matching the column and row. e.g 4 cables at 40 metres would give me cell D7 (27.89), as 25 metres would be no good - so rounding up would be required.
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Jan 30, 2013
I am using a pivot table to explore the relationship between the two variables in a survey. Question 1 is a "choose all that apply" question, while Question 2 is more "if you said yes to any in question 1, choose all that apply".
So, I have about 10 filters for question 1, where each combination will give me a different number for the responses for question 2. My question is this: How do I get excel to automatically find the # of individuals with the particular combination of filters in question 1?
Ie. if said yes to 3/10 options in question 1, how do I get excel to find out how many actually said yes to the 3/10 questions.
The purpose of this data is for reference to question #2, so that i can utilize some percentages.
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May 21, 2013
I'm using multiple data tables to run sensitivity analyses on a very large model. At the end of the analysis, I've got a matrix that tells me which scenarios are TRUE or FALSE (based on multiple criteria). I'm looking for an elegant way to extract the combinations that give TRUE.
Column1
Column2
Row1
FALSE
TRUE
Row2
TRUE
FALSE
Desired Output
True Scenarios:
R1, C2
R2, C1
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Dec 11, 2012
The matrix:
Col A Col B Col C
2012-11-08 07:26:16Check-InJohn
2012-11-08 13:23:58Check-OutJohn
2012-11-08 13:24:01Check-InJohn
The goal:
Since i have a given:
1. Name(which exists in column C)
2. Date (which exists in column A - formated has (AAAA-MM-SS HH:MM:SS)
3. Event (which exists in column B)
4. Hour*
I want to know the nearest hour that matches all criterias.
In the example on top, if i give:
John, 2012-11-08, Check-In, 14:00:00
I want the result: 13:24:01
If, for example, the date doesn't exist, the result could be a simple error message.
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Feb 27, 2014
I am creating a box CBM optimizing tool at work for shipping our products internationally so that the sales department and logistics can estimate shipping costs and weights with out needing me to physically pack everything in advance. I have broken every product we sell into individual CBM's as well as the boxes that we use to ship. I have also set it up to give a break down of "boxes needed" to accommodate the approximated CBM by box size.
How to create a function that will take that info and calculate which combination of boxes will utilize the available space... In other words, how do i take my break down of the 6 box sizes available, with the "# of boxes needed" data i already have, and have it tell me which combination of boxes will utilize the maximum percentage of space, or leave the least amount of unused space based off of the cumulative CBM being shipped.
Snippet attached:
Capture.PNG
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Aug 30, 2013
Is it possible to calculate the current optimal fantasy football team from the attached data and constraints listed on the 'solver' tab?
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Aug 26, 2007
I have a data chart on 200 people with overlapping membership in 20+ groups, represeted as binary (1=member, 0=notmember), for example: ...
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Aug 22, 2008
Using VBA, I wish to work out the inverse matrix of a large matrix (100*100), but keep getting the # Num! Error. I am using the minverse function. I have defined variable as "variant", does this give me the same possiblities in terms of number size as the variable "Double"?
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Mar 21, 2014
For a table like the one below produced for the sake of example (actual is much much bigger) I want to make it list rows that are true for a certain column for a certain variable in the matrix. So for say water terrain, which types of activity can I do i.e. swimming. Or for Offroad the activites which I can't do i.e. Run and Swim.
ActivityWaterRoadOffroad
Jog nym
Run nyn
Walk nyy
Swim ynn
y=yes
n=no
m=maybe
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Jul 12, 2012
I have a formula that I can't get to paste successfully in the forum - it keeps getting cut off?!? ... but I think I can probably simplify my explanation to get the answer I want anyway.
I need to only show the value from AUS!$H$2:$H$17 if the C2 & D2 combination are the same as the AUS!$B$2:AUS!$B$17 & $AUS!$C$2:AUS!$C$17 combination.
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Apr 29, 2013
Below there are all the information needed to understand my problem.
M(1 to R,1 to C): matrix with R rows and C columns [element known]
M(i,j): elements of the matrix M in position i(row)-j(column) [element known]n
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Mar 20, 2009
I have 2 cells with numbers. In a 3rd cell I want to create a formula which looks at the 2 data cells and shows a value. The rules are the following: If C1 or C2 are bigger than Xthen C3=value1 else C3=value2. I have some basic excel knowledge but im not very familiar with functions. I'm using Excel 2007.
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Feb 28, 2014
I need to consolidate several amount and make sure which of them falls into a sum of an amount.
I wonder if excel can find all the calculation in range A, and highlight those that equal to the cell D10 (example as per my attachment).
Calculation.xlsx
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Jan 16, 2010
how to create a list (I know how to calulate the count) of combinations without repetition when choosing 2,3,4 and 5 words from a set of 5 in Excel 2007.
e.g. Alpha,Bravo,Charlie,Delta,End
(AlphaBravo=BravoAlpha)
Choosing 2 = 10
Choosing 3 = 10
Choosing 4 = 5
Choosing 5 = 1
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Nov 13, 2013
I have data in a 5x5 area and I would like a VB Script or Function that can give every possible combination of one number from each column added together.
i.e.
500 400 300 200 100 1500
400 300 200 100 500 1900
300 200 100 500 400 1800
200 100 500 400 300 etc...
100 500 400 300 200
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Jun 22, 2007
I have a list of numbers from 1-7 would look like this each number in a seperate cell.
3 5
1 2 3 5 6 7
2 4 5 6 7
6 7
4 6
6
I want to use one number from each row (which there is only 6 rows) and then find every number from 1-7 that will complete the sequence 1-7. So with the numbers above (using one number from each row) the only other numbers that could be used would be 3 or 5.
The combos that would work:
row 1 use 3 ----------- row 1 use 5
row 2 use 1 ----------- row 2 use 1
row 3 use 2 ----------- row 3 use 2
row 4 use 7 ----------- row 4 use 7
row 5 use 4 ----------- row 5 use 4
row 6 use 6 ---------- row 6 use 6
5 would complete ---------- 3 would complete
Remember the numbers and how many numbers in each row can change but will always be 1-7 and I always need to find every number that can complete the sequence 1-7 by using one number from each row.
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Nov 15, 2008
on combination of numbers
on the extreme left column, i have 23 numbers from A1:A23. All 23 numbers are in the form of 4 digit. For example A1 there is 1234, i need to display the possible 3 digit combination of this in the same row (like say 123,124,234,134 in B1,C1,D1 AND E1).
Another example in A2 there is 3545, i need to display 354,455,355 in the same row in B2,C2,D2
I need to perform this operation for the 23 numbers on the extreme left row. Can give me some hint on the code.
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Feb 10, 2006
I am trying to show the all possible combinations of a set of numbers in Excel, in my case I think permutations are more appropriate to use. For example: there are three numbers 1, 2, 3 I want to show results like:
1, 2, 3
1, 3, 2
2, 1, 3
2, 3, 1
3, 2, 1
3, 1, 2
The functions in Excel available only give the total number, but I want to see these combinations!
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Jan 23, 2014
I was just wondering if it was possible to only allow cells in a worksheet to only allow values that are a combination of 2 arrays whether it be through data validation or other means. For example, if I have an array that has a b and c and a second one with 1 2 and 3, is it possible to only allow values a1 a2 a3 b1 b2 b3 c1 c2 c3?
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Mar 10, 2014
I have set of people where by based on Level & designation want to find the percentile on their CTC.
Attached is the sample file. Percentile.xlsx
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Apr 6, 2009
Can Offset be combined in an Index Match Match formula as per the attached sample?
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May 11, 2009
I'm trying to use a combination of Hlookup and COUNTIF. I'm selecting a date value in a cell using data validation. I'm then wanting to write a formula to lookup that value in a row of dates, and then use a countif to find all the '1' values in that column.
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Jul 25, 2009
Ive attached my example but explaination of what i am trying to do is below:
In sheet 1 i have products listed with a product ref
In sheet 2 i have a list of features by product ref.
I want to be able to put each feature next to the relevant product in sheet 1, some products may have 3 features, others may have 5 or more.
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Oct 9, 2009
I need combining sumif & sumproduct. I have attached a file which explains what I need.
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