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How to compare elements of rows within cell array?

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lucksBi
lucksBi am 10 Jan. 2018
Kommentiert: lucksBi am 10 Jan. 2018
Hey All ... I have an array 'array1'. I want to compare each elements of array1 with other elements.
array1= {[1,2,3,8];[1,6];[1,2,3];[1,5,6];[2,4,5];[1,7];[2,8];[2,3,5,7,9]}
e.g. first elements is array1{1,1}={[1,2,3,8]}
All these values 1,2,3,8 will be compared with all other elements of array1 one by one. And find out where that value is present in other elements of array1, index of that row will be saved in resultant array.
ResultantArray{1,1} = {[2,3,4,6];[3,5,7,8];[3,8];[7]} % e.g. [2,3,4,6] is result of comparing '1' with others and 2,3,4,6 are rows where 1 is present in array1.
ResultantArray{2,1} = {[1,3,4,6];[4]} % similary [1,6] are compared with others and {[1,3,4,6];[4]} are rows where these are present.
ResultantArray{3,1} = {[1,2,4,6];[1,5,7,8];[1,8]}
and so on for other elements of array1.
please help.

Akzeptierte Antwort

Birdman
Birdman am 10 Jan. 2018
for k=1:size(array1,1)
for j=1:numel(array1{k,1})
for i=1:size(array1,1)
[~,idx(i,j,k)]=ismember(array1{k,1}(j),array1{i,1});
end
ResultantArray{k,j}=setdiff(find(idx(:,j,k)),k);
end
end

Weitere Antworten (1)

KSSV
KSSV am 10 Jan. 2018
A for loop and ismember does the job......read about ismember
  1 Kommentar
lucksBi
lucksBi am 10 Jan. 2018
Yes i try this before posting question but i was doing some mistake with 3rd loop which @Birdman corrected accurately. Thank You

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