i just need to know how can i extract the columns based on a condition

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omar mahallawy
omar mahallawy 2019-2-24
评论： Andi 2022-3-31
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the condition is (if the first value in the column is less than or equal to a certain number then extract the whole column)
10 by 13 vector, in a for loop

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Walter Roberson
Walter Roberson 2019-2-24
mask = TheArray(:,1) <= ACertainNumber;
output = TheArray(mask, :);
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Andi
Andi 2022-3-31
@Walter Roberson I highly appreciate your approch. I have a similar problem only the difference is in my case ACertainNumber is in a range e.g., 1-2 and then 2-3 and so on. Additionally, I need to compute the mean of ACertainNumber of all the selected coloumns. May you suggest any possible wayout.

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