Compare adjacent elements in a column within array and remove if greater/less than value
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I have a large matrix (15882x9). Data has been imported from excel. I would like to compare adjacent elements within each column, and if the difference is greater than 100 then I want to delete that entire row. (This is an issue with our data collection, unsure why)
I have tried the filloutliers function but this does not quite remove everything I need.
e.g. simple example below... if difference between adjacent elements within column is <15 then delete row.
array = [1 2 3 4; 5 1 20 3; 2 5 4 1]
For column 3, 20 - 3 = 17 so I would like to delete the second row, so now array is:
array = [1 2 3 4; 2 5 4 1]
Thanks for your help :)
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Accepted Answer
Walter Roberson
on 12 Jul 2018
threshold = 100;
array( [false; any(diff(array) > threshold,2)], :) = [];
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