Assistant with calculation set

Nony2007

New member
Joined
Feb 13, 2012
Messages
1
Hi All,

My task that i am trying to solve is to find the values that low
frequency as well as far away from the remaining in most efficient
way.

My data
a1a2a3a4Frequency
p100014
p210016
p300103
p411011



Avg_freq = 14/4= 3.5

I used the ave_freq to divide my data to High and low set
High where the frequency of pi>=avg_freq ( in our example P1 and P2)

Low where the frequency of pi<avg_freq ( in our example P3 and P4)


I solve the first problem which separate low frequency data from high
frequency data. Then i used co occurrence matrix to find variance
between high and low but i do not know how to include the frequency of
p in the calculation.

p1p2sum
p3235
p4213




However, i have encounter two mathematical problems:
1: how to combine the frequency for high and low p in the calculation
of variance.
2: Some low set maybe get high variance when comparing to high set but
it is very close when we compare it low.

Please let me know if my idea is the correct in finding the low
frequent and far away from other in very fast way. Do you have better
solution.

Thanks a lot

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