Find values between 50th to 75th percentile.
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Pritha Pande
le 30 Oct 2017
Commenté : Sachindra Dhanapala Arachchige
le 6 Mai 2018
I have 80*80 matrix, from which I want to extract values which lie under 50th to 75th percentile. I want to write a code such that the new matrix now formed have data which lie under 50th to 75th percentile and other values will be shown as NaN.Something like this:
for i=1:80;
for j=1:80;
if (My_matrix(i,j)<=prctile(My_matrix(i,j),25)&(My_matrix(i,j),50)=xx;
else My_matrix(i,j)==NaN
end;
end;
end;
Where, My_matrix is 2d matrix of 80*80 size. Please correct the code i have written, or tell how i can find the values which lies between 25th to 50th percentile
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Andrei Bobrov
le 30 Oct 2017
Modifié(e) : Andrei Bobrov
le 30 Oct 2017
t = prctile(My_matrix,25) > My_matrix | prctile(My_matrix,75) < My_matrix;
out = My_matrix;
out(t) = nan;
2 commentaires
Sachindra Dhanapala Arachchige
le 6 Mai 2018
As I understand Andrei's code outputs a logical matrix (0 and 1) which satisfies the condition given in the first line of his code. By multiplying the 'My_matrix' with 't' one could get the values within 'My_matrix' which satisfy the above condition. Try the following and see. B = My_matrix.*t;
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