MATLAB: How do convert array x to array z MATLAB Hi, How do convert array x to array z ? x = [4 4 8 8 8 5 5 4 8 8 4] Z = [1 1 2 2 2 3 3 1 2 2 1] 4 -> 1 8 -> 2 5 -> 3 Best Answer If you want to convert the first value, whatever it may be, to 1, the second to 2, etc:>> x = [4 4 8 8 8 5 5 4 8 8 4];>> [~,ia,ic] = unique(x,'first');>> [~,ia] = sort(ia);>> z = ia(ic)z = 1 1 2 2 2 3 3 1 2 2 1 Related SolutionsMATLAB: Minimum of unique values You can use unique and accumarray:>> x = [100 100 200 200 300 300];>> y = [ 1 2 4 3 9 7];>> [~,~,ic] = unique(x,'stable');>> z = accumarray(ic(:),y,[],@min)z = 1 3 7 MATLAB: Find missing element between two matrix >> A = [1,2;3,6;3,5;1,4;4,6;2,7;1,6;6,5;2,3;6,7;3,4];>> B = [1,2;1,6;2,3;3,4;4,6];>> R = setdiff(A,B,'rows')R = 1 4 2 7 3 5 3 6 6 5 6 7To get the same order, use the 'stable' option or this:>> [~,X] = setdiff(A,B,'rows');>> X = sort(X);>> R = A(X,:)R = 3 6 3 5 1 4 2 7 6 5 6 7 Related QuestionHow to swap this matrixHelp running Matlab scriptUnable to find explicit solution to differential eqSymbolic solutions to sysems of ODEs
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