Remove zero padding in the vector which has element 0

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

 Risposta accettata

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 Commento

Tan
Tan il 5 Feb 2017
Modificato: Tan il 5 Feb 2017
It worked! Thank you Stephen for telling me:)

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Più risposte (1)

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 Commenti

I just know there is a padding such as that. I've tried and it worked. Thank you Star Strider for telling me:)

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