find values

If I have a matrix where each column refers to depth and each row refers to days, how is it possible to find and keep the values in each column which is between 0 and 30. At the minute some of the values fall below 0 and others reach as high as 100. So how would I just keep the values between 0 and 30 in the same matrix and make every other value as NaN?
cheers

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Wayne King
Wayne King 2011-11-17
X = randi([-5 110],10,10);
X(X<0 | X>30) = NaN;

3 个评论

Hi wayne i would like to ask you in which version are added the randi function...later than R2007b?
Wayne King
Wayne King 2011-11-17
@Mitch Martelli R2008b
Thanks a lot...you are very kind

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