cell array sort
1 Ansicht (letzte 30 Tage)
Ältere Kommentare anzeigen
Dear All
I have A = {[1 2]; [2 2]; [2 1 3]; [1 1 3] }, a cell array contains several vectors with various length.
Input :
[1 2]
[2 2]
[2 1 3]
[1 1 3]
and I want to sort this cell array according to ascent order of each element, and regardless the length.
What I expect to have is
[1 1 3]
[1 2]
[2 1 3]
[2 2].
What I use is convert vector to string, and then sort the strings.
=====
% each number should have the same length in string.
ind = cellfun(@(x) num2str(x,'%05.f,'), A, 'UniformOutput',false);
=====
However, num2str is expensive. Do you have any other good idea to do this? Thanks!!!
0 Kommentare
Akzeptierte Antwort
Andrei Bobrov
am 25 Jun. 2012
[id,id] = sortrows(cell2mat(cellfun(@(x)x(1:2),A,'un',0)));
out = A(id);
other
m = cellfun(@numel,A);
k = arrayfun(@(x,y)[x{1} zeros(1,max(m)-y)],A,m,'un',0);
[id,id] = sortrows(cat(1,k{:}));
out = A(id);
other 2
[id,id] = sort(cellfun(@num2str,A,'un',0));
out = A(id);
Weitere Antworten (0)
Siehe auch
Kategorien
Mehr zu Cell Arrays finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!