How to find maximum values in large dataset

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hello everyone, I have one large data set as a one column matrix and the size (3386718 x 1) and I need to filter some maximum values inside the data. For example most of the values between 0-1 but the some values about 14 and 15.. so I try to find out max values. However I've got this error message
displace=data
c=max(displace)
Subscript indices must either be real positive integers or logicals.
how can I find the max values and remove them from dataset??
Thanks. Mustafa

Accepted Answer

Image Analyst
Image Analyst on 4 May 2014
First of all, 3 million elements not a large dataset by any modern definition. It's like 1/10th the size of a typical point and shoot camera image. Anyway, you can simply threshold to get a map of where the outlier pixels are:
badElements = displace > 1; % Or whatever value you want.
To remove them from your array, do this:
displace(badElements) = [];
  1 Comment
abuzer
abuzer on 4 May 2014
Thank you very much. it solved my problem.

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