How would I remove multiple specific elements from an array.
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The elements I want to remove from array B are displayed from r(i). The current code at the bottom only gets rid of one of the values returned from r(i), but it returns 2 values and I need both removed from the array without just removing them specifically at their location incase entering a new data set changes the locations of the elements I am getting rid of. Thanks!
Data = [923 916 932 927 908 931 953 926 919 963];
B = sort(Data,'ascend');
n = numel(B);
xmin = B(1);
xmax = B(n);
Q1 = round(.25*(n+1));
Q3 = round(.75*(n+1));
atQ1 = B(Q1);
atQ3 = B(Q3);
IQR = atQ3 - atQ1;
MO = 1.5*IQR;
for i = 1:length(B)
if B(i) <=(atQ1-MO) || B(i) >=(atQ3+MO)
r(i) = B(i);
disp(r(i));
end
end
g = B(B~=r(i));
display(g);
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Answers (3)
Selena Mastrodonato
on 24 May 2023
If I have understood correctly, you could replace your second-last line of code with B(B==r) = []
Data = [923 916 932 927 908 931 953 926 919 963];
B = sort(Data,'ascend');
n = numel(B);
xmin = B(1);
xmax = B(n);
Q1 = round(.25*(n+1));
Q3 = round(.75*(n+1));
atQ1 = B(Q1);
atQ3 = B(Q3);
IQR = atQ3 - atQ1;
MO = 1.5*IQR;
for i = 1:length(B)
if B(i) <=(atQ1-MO) || B(i) >=(atQ3+MO)
r(i) = B(i);
disp(r(i));
end
end
B(B==r) = []
So that you delete all the elements present in r
Torsten
on 24 May 2023
Edited: Torsten
on 24 May 2023
Data = [923 916 932 927 908 931 953 926 919 963];
B = sort(Data,'ascend');
n = numel(B);
xmin = B(1);
xmax = B(n);
Q1 = round(.25*(n+1));
Q3 = round(.75*(n+1));
atQ1 = B(Q1);
atQ3 = B(Q3);
IQR = atQ3 - atQ1;
MO = 1.5*IQR;
g = B(B>(atQ1-MO) & B<(atQ3+MO))
2 Comments
Image Analyst
on 10 Jun 2023
If this Answer solves your original question, then could you please click the "Accept this answer" link to award the answerer with "reputation points" for their efforts in helping you? They'd appreciate it. Thanks in advance. 🙂 Note: you can only accept one answer (so pick the best one) but you can click the "Vote" icon for as many Answers as you want. Voting for an answer will also award reputation points.
Steven Lord
on 24 May 2023
Data = [923 916 932 927 908 931 953 926 919 963];
g2 = sort(rmoutliers(Data, "quartiles"))
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