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 April 6th, 2012, 07:04 AM #1 Newbie   Joined: Apr 2012 Posts: 5 Thanks: 0 How to choose the best from two option? I have to develop a mathematics model to choose the best from two variables... for example there is two type of fruit(x) which is local and non-local with different price(y)...I have to choose fruit with the lowest price but my priority is local fruit... should I use goal programming or there is another easier or proper method to use? can anyone give the best method with a brief explanation...thanks in advance -sorry for my English -
 April 6th, 2012, 07:11 AM #2 Global Moderator     Joined: Nov 2009 From: Northwest Arkansas Posts: 2,766 Thanks: 4 Re: How to choose the best from two option? How to you quantify (i.e. "assign a number to") the priority of local vs. nonlocal?
April 6th, 2012, 07:20 AM   #3
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Re: How to choose the best from two option?

Quote:
 Originally Posted by The Chaz How to you quantify (i.e. "assign a number to") the priority of local vs. nonlocal?

 April 6th, 2012, 07:21 AM #4 Newbie   Joined: Apr 2012 Posts: 5 Thanks: 0 Re: How to choose the best from two option? then what should i do
 April 6th, 2012, 07:33 AM #5 Global Moderator     Joined: Nov 2006 From: UTC -5 Posts: 16,046 Thanks: 938 Math Focus: Number theory, computational mathematics, combinatorics, FOM, symbolic logic, TCS, algorithms Re: How to choose the best from two option? What is the underlying reason for preferring local? If it's just 'for its own sake' then you simply need to quantify the strength of your preference, as The Chaz suggests. But if that's really just a proxy for something else, we'd do better to examine that other thing directly. For example, let's say your reason for preferring local foods is that less fuel is used to transport them (and for some exogenous reason you prefer low fuel use). In that case you should really compare things on that basis rather than just using distance. For example, you'd prefer to buy food from a farm 300 miles south of you than one next door, if the one next door used a very fuel-intensive greenhouse and the one further south used so much less fuel as a result that the amount used in transportation was minimal in comparison.
April 6th, 2012, 07:59 AM   #6
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Re: How to choose the best from two option?

Quote:
 Originally Posted by CRGreathouse What is the underlying reason for preferring local? If it's just 'for its own sake' then you simply need to quantify the strength of your preference, as The Chaz suggests. But if that's really just a proxy for something else, we'd do better to examine that other thing directly. For example, let's say your reason for preferring local foods is that less fuel is used to transport them (and for some exogenous reason you prefer low fuel use). In that case you should really compare things on that basis rather than just using distance. For example, you'd prefer to buy food from a farm 300 miles south of you than one next door, if the one next door used a very fuel-intensive greenhouse and the one further south used so much less fuel as a result that the amount used in transportation was minimal in comparison.

sorry for the question above that maybe not clear....

this may help...
there is five fruit stall in town and each stall sell orange, apple and grape. The price for each fruit is different for each stall. I have to consider the fruit with lowest price which is my 1st choice is apple, 2nd is orange and 3rd is grape...

plz help me

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