Author | Message |
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abansal
Posts: 9
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Posted 19:59 Jul 21, 2009 |
Calculations were quite long. I have tried to do it correct upto best of my ability. Please check for the calculation error. I have a typing error too. I mean "Body Temperature" where i used "Blood Type" Last edited by abansal at
20:01 Jul 21, 2009.
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xieguahu
Posts: 50
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Posted 22:01 Jul 21, 2009 |
The answer is same, but there is some calculation difference in split on Aerial Creature
Last edited by xieguahu at
22:05 Jul 21, 2009.
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hsankav
Posts: 18
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Posted 19:22 Jul 24, 2009 |
I would like to know how to choose the root node is it randomly or is there any rule to select the root node |
HelloWorld
Posts: 88
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Posted 21:04 Jul 25, 2009 |
here is mine.. GX, it seems like you did something wrong on the entropy(D) calculation.. try to double check it again with my solution.. and let me know |
pratyush
Posts: 6
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Posted 10:18 Jul 26, 2009 |
Hi Helloworld. I have calculated the entropy for the Root set and got the same result as ankur and xieguahu has provided. I think You have missed a term while adding the entropies. there are only four terms here (i.e -0.5283 + -0.4644 + -0.4644 + -0.3876). I have used google calculator and Matlab and i got the 2.232 as the root set. |
HelloWorld
Posts: 88
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Posted 10:32 Jul 26, 2009 |
hey pratyush, yeah, i missed a term.. thanks! :P |
HelloWorld
Posts: 88
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Posted 23:53 Jul 26, 2009 |
Here's the update of my solution.. GX, i think you miscalculated the Aerial Creature.. But the result is still the same split.. |