How to repeat number of array by values in another matrix
3 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
Hamdia Mansour
am 25 Jun. 2020
Kommentiert: Hamdia Mansour
am 25 Jun. 2020
Hello everybody I have an array like array=[3 4 2 1] and I want to create another array which contain repetition of values in this array by no of values in matrix. Matrix =[0 2 4 5; 1 3 2 6; 1 0 3 5; 5 6 3 1] Here for this array first no is 3 this mean repetition in matrix found in first column and row 3 which equal 1 and the second number is 4 also means that second column and forth row. so the resulted array will be 3 4 4 4 4 4 4 2 2 1 1 1 1 1 if someone could help me
0 Kommentare
Akzeptierte Antwort
Johannes Fischer
am 25 Jun. 2020
array = [3 4 2 1];
matrix = [0 2 4 5; 1 3 2 6; 1 0 3 5; 5 6 3 1];
% first, you need a vector with the same length of array that tells you
% how often each element must be repeated
reps = diag(matrix(array, :));
% now you can use 'repelem' with that vector
result = repelem(array, reps);
2 Kommentare
Weitere Antworten (0)
Siehe auch
Kategorien
Mehr zu Matrices and 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!