How to remove incomplete elements in a vector? using loops
1 visualizzazione (ultimi 30 giorni)
Mostra commenti meno recenti
Sandie Nhatien Vu
il 6 Ago 2016
Modificato: Sandie Nhatien Vu
il 6 Ago 2016
I have an experiment consisting of id numbers (x.y), where x = experiment number and y = part number.
If l have a vector, let's say:
v(id) = [1.3, 2.2, 2.3, 2.1, 1.1]
and want to remove the incomplete ones, namely: in experiment 1 because part 2 is missing
How can l do that and get the output: ans = 2.2, 2.3, 2.1 (it should remain in the same order as the original)
2 Commenti
Walter Roberson
il 6 Ago 2016
Why are you not removing the 2.* series as well, since part 42 of that is missing?
Risposta accettata
Guillaume
il 6 Ago 2016
This should work:
v = [1.3 2.2 2.3 2.1 1.1];
requiredcount = 3;
experiments = floor(v)';
[uexp, ~, idx] = unique(experiments);
expcount = accumarray(idx, 1);
exptodiscard = uexp(expcount < requiredcount);
v(ismember(experiments, exptodiscard)) = []
Note that this entirely ignore the part number, it just counts the number of times an experiment is found and if it is less than the required count it is discarded. Therefore, it assumes that part numbers within an experiment are unique.
1 Commento
Più risposte (0)
Vedere anche
Categorie
Scopri di più su Shifting and Sorting Matrices in Help Center e File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!