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How to sort chunks of data file in descending order

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Nick Elias
Nick Elias on 31 Mar 2021
Edited: KSSV on 31 Mar 2021
I have the attached data file (one column) where there are chunks of numbers separated by rows of zeros. I would like to know a quick way to sort every chunk of non zero numbers in descending order.

Accepted Answer

KSSV on 31 Mar 2021
Read the data using readtable and then use function sort.
KSSV on 31 Mar 2021
A = data' ;
ii = zeros(size(A));
jj = abs(A) > 0;
ii(strfind([0,jj(:)'],[0 1])) = 1;
idx = cumsum(ii).*jj;
c = unique(idx) ;
iwant = A' ;
for i = 2:length(idx)
iwant(idx==i) = sort(A(idx==i),'descend') ;

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