Remove zero padding in the vector which has element 0

4 vues (au cours des 30 derniers jours)
Tan
Tan le 4 Fév 2017
Commenté : Star Strider le 5 Fév 2017
I have vector A=[1 36 28 95 64 125 44 96 93 21 67 126 59 25 117 0 84 9 6] and then padded with zero until the length multiple of 3. So the newA=[1 36 28 95 64 125 44 96 93 21 67 126 59 25 117 0 84 9 6 0 0]. It is possible to remove zero padding? Because if i used nonzeros, the element 0 of A removed too. The number of elements A vector can not be ascertained

Réponse acceptée

Stephen23
Stephen23 le 4 Fév 2017
You can use find for this:
>> newA = [1,36,28,95,64,125,44,96,93,21,67,126,59,25,117,0,84,9,6,0,0]
newA =
1 36 28 95 64 125 44 96 93 21 67 126 59 25 117 0 84 9 6 0 0
>> B = newA(1:find(newA,1,'last'))
B =
1 36 28 95 64 125 44 96 93 21 67 126 59 25 117 0 84 9 6
  1 commentaire
Tan
Tan le 5 Fév 2017
Modifié(e) : Tan le 5 Fév 2017
It worked! Thank you Stephen for telling me:)

Connectez-vous pour commenter.

Plus de réponses (1)

Star Strider
Star Strider le 4 Fév 2017
Using eps (or some other small number) to replace either your original zero or the padded zeros will work also, and not interfere with your calculations with them:
A=[1 36 28 95 64 125 44 96 93 21 67 126 59 25 117 0 84 9 6];
newA=[1 36 28 95 64 125 44 96 93 21 67 126 59 25 117 0 84 9 6 eps eps];
OriginalA = newA(A ~= eps)
  2 commentaires
Tan
Tan le 5 Fév 2017
I just know there is a padding such as that. I've tried and it worked. Thank you Star Strider for telling me:)
Star Strider
Star Strider le 5 Fév 2017
My pleasure!

Connectez-vous pour commenter.

Catégories

En savoir plus sur Operators and Elementary Operations dans Help Center et File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by