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Topic: Statistical Comparision
Replies: 3   Last Post: Jul 22, 2011 12:34 AM

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William Elliot

Posts: 1,948
Registered: 5/30/08
Statistical Comparision
Posted: Jul 21, 2011 5:05 AM
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Given two finite strings of numbers
a1,.. a_n and b1,.. b_n what's a good
way to measure how close or similar they are?

sqr sum(j=1,n) (a^2 - b^2)/n ?

Are there other measures?

How would you measure the closeness or similarity
if one string is shorter than the other?

What weight or bias would be put on one missing number?
On two missing numbers? Is there an established
statistical method for handling this type of problem?



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