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

 Accepted Answer

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 Comment

Tan
Tan on 5 Feb 2017
Edited: Tan on 5 Feb 2017
It worked! Thank you Stephen for telling me:)

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More Answers (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 Comments

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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Asked:

Tan
on 4 Feb 2017

Commented:

on 5 Feb 2017

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