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Thread: method to extrapolate groups in a given data set

  1. #1 method to extrapolate groups in a given data set 
    New Member
    Join Date
    May 2008
    Posts
    1
    Dear all:
    Is there a software that can mine a dataset and extrapolate and organize its data into groups.
    For example. Lets say we know that Athletes drinks 2x more water than couch potatoes.

    A study was conducted blind and a set of data was given as such.

    subject 1: 1 liter
    subject 2: 1.2 liter
    subject 3: 500 ml
    subject 4: 2 liter
    subject 5: 200 ml
    subject 6: 700 ml

    A computer mining program will then group
    subjects 1,2,4 as group A
    subjects 3, 5, 6 as group B

    Of course in the real world we do not necessarily know that two groups exist in this given data set, or even that athletes drink more water than couch potatoes.

    thanks!
    Alex :wink:


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  3. #2  
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    Join Date
    Apr 2007
    Location
    Pennsylvania
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    The easy way would be to sort the data by the amount of water consumed. Then you would have to specify some criteria as a breakpoint between the groups. It is not clear to me why you grouped the six people as you did, unless you just arbitrarily decided to put the cutoff at 1 liter. The two groups are not athletes and couch potatoes as you have defined them.


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