How to draw a smaller boundary?

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Leon
Leon 2018-2-27
评论： Leon 2018-2-28
I have a two column data of Te2000 and Ar2000. I can plot the points and their boundary without any issue like this:
plot(Te2000, Ar2000, 'b.')
k1 = boundary(Te2000,Ar2000);
hold on;
plot(Te2000(k1), Ar2000(k1));
My goal is to get a tighter boundary that only covers 90% of the points, so I tried the below code:
plot(Te2000, Ar2000, 'b.')
k1 = boundary(Te2000,Ar2000);
hold on;
plot(Te2000(k1), Ar2000(k1), 0.75);
Why do I get this below error?
Error using plot
Data must be a single matrix Y or a list of pairs X,Y.

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采纳的回答

Walter Roberson
Walter Roberson 2018-2-27
编辑：Walter Roberson 2018-2-27
  7 个评论
显示 5更早的评论
Steven Lord
Steven Lord 2018-2-27
If you're using release R2017a or later, check if any of the methods available in the isoutlier function detects outliers in such a way that matches your intuition and/or expectations.
Leon
Leon 2018-2-28
Many thanks for the tip!

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