Convert vector to matrix with used-defined step

Hi.

I want to convert a vector to a matrix but with a step defined by me.

For example:

myVector = [1 2 3 4 5 6];

myMatrix = [1 2; 2 3; 3 4; 4 5; 5 6];

I am familiar with vec2mat but this function does not do what I want.

Using this function to create a 2-column matrix the final result would be:

myMatrix = [1 2; 3 4; 5 6];

I already searched but I couldn't find an answer to this problem.

I am trying to avoid using for loops.

Thank you.

Best Regards.

Answer 1

[Azzi Abdelmalek]

v=[1 2 3 4 5 6];
v=[v;v];
v=reshape(v(2:end-1),2,[])'

%or simply

v=[1 2 3 4 5 6];
v=[v(1:end-1); v(2:end)]'

Answer 2

[dpb]

Think storage order... :)

One (of many possible) solutions...

>> V = [1 2 3 4 5 6];
>> reshape([V(1) reshape([V(2:end-1)' V(2:end-1)']',1,[]) V(end)],2,[])'
ans =
   1     2
   2     3
   3     4
   4     5
   5     6
>>

Answer 3

[santos666]

Thank you.

You are both right but i realize now that i gave an example too much simple.

Sorry, my mistake.

An harder one:

 if true
 v = 1:10

 m = [
 1 2 3 4 5;
 2 3 4 5 6;
 3 4 5 6 7;
 4 5 6 7 8;
 5 6 7 8 9;
 6 7 8 9 10;
 ]
 end