How can I remove the ranges from a specific column vector?

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Hello;
How can I remove the following ranges from the k column vector below:
k=[1 0 2 1 9 8 0 0 4 2 3 3 5 1 1 0 3 2].' ;
ranges to be removed from k column vector are as;
range1=k(1:4); range1=k(9:12); range1=k(13:16);
Thanks in advance!!

Accepted Answer

Stephen23
Stephen23 on 28 Mar 2018
Edited: Stephen23 on 28 Mar 2018
>> vec = [1;0;2;1;9;8;0;0;4;2;3;3;5;1;1;0;3;2;0;0;0;0;0;0];
>> tmp = reshape(vec,12,[])
tmp =
1 5
0 1
2 1
1 0
9 3
8 2
0 0
0 0
4 0
2 0
3 0
3 0
>> tmp(1:4,:) = []
tmp =
9 3
8 2
0 0
0 0
4 0
2 0
3 0
3 0
>> tmp(:)
ans =
9
8
0
0
4
2
3
3
3
2
0
0
0
0
0
0
  2 Comments
David Fletcher
David Fletcher on 28 Mar 2018
Neat. Easily beats my solution.
a=1:4
b=0:12:N;
c=a+repmat(b,4,1)';
del=reshape(c',1,numel(c))
k(del)=[]

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More Answers (1)

David Fletcher
David Fletcher on 28 Mar 2018
del=[1:4 9:12 13:16]
k(del)=[]
  1 Comment
Tuncay Eren
Tuncay Eren on 28 Mar 2018
Thanks David.
İf k is a data vector as 1024x1, then how can we make it as a general formula to remove consecutive 4 bits and then keep 8 consecutive bits, then again remove 4 bits and keep 8 bits...
N=1024;
k=randi([0 1],N,1);
k_remove1=k(1:4);
k_remove2=k(13:16);
k_remove3=k(25:28);
.
.
.
Thanks

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