
Elementary Math Fractions, Percentages, Word Problems, Equations, Inequations, Factorization, Expansion 
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October 21st, 2019, 08:19 AM  #1 
Member Joined: Dec 2018 From: Amsterdam Posts: 38 Thanks: 2  What does this mean?
When I execute this formula on two matrices, what does this give me? Where abs mean absolute value of numeric data. mean(abs(ab))/mean(abs(a)) The matrices would look like this figure below, but instead of letter there are counted values of how often something occurs: Last edited by skipjack; October 22nd, 2019 at 11:02 AM. 
October 21st, 2019, 09:34 AM  #2 
Senior Member Joined: Sep 2015 From: USA Posts: 2,638 Thanks: 1475 
what would $a$ and $b$ be in this context?

October 21st, 2019, 11:31 PM  #3 
Member Joined: Dec 2018 From: Amsterdam Posts: 38 Thanks: 2  A and B would be counted values, the values inside the matrix look like data that can be applied on a Fisher extract test. And is this a linear algebra formula (what kind of math is this formula?) Last edited by skipjack; October 22nd, 2019 at 11:03 AM. 
October 22nd, 2019, 07:38 AM  #4 
Member Joined: Dec 2018 From: Amsterdam Posts: 38 Thanks: 2  