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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(a-b))/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
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Quote:
 Originally Posted by romsek what would $a$ and $b$ be in this context?
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
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Quote:
 Originally Posted by romsek what would $a$ and $b$ be in this context?
So to correct my answer $a$ is matrix a and $b$ is matrix b

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