MATLAB: Find out in which row an element is equal to a specific number

find specific row that contains data which is intended to delete

hi,
I have the following problem:
I have a matrix with 20 columns and over 200'000 rows. somewhere in this matrix there seems to be some strange datas which I would like to delete. If I am looking for the rownumbers where the value is higher than a specific value, lets say I am looking for all the values in the first row that are larger than 1500
If I do this:
data18(:,1)>1500
I get a logical array, but what I am looking for is the exact row number, what do I need to do?

Best Answer

If you are looking for rows where any value is > 1500, then
find(any(data18>1500,2))
Or if you are only interested in rows where the 1st column is > 1500, then
find(data18(:,1)>1500)
Related Question