Shifting position of an element in a vector from 1st to last

i want to change the position of a number in element from 1st to last

for example if i have a sequence 1-2-3-4-5

first i want to move 1 to end of vector like 2-3-4-5-1

then i want to move 2 like 1-3-4-5-2

then 3, 1-2-4-5-3

and so on withoutchanging order of other.i can do it with for loop but is there a single command for this in Matlab??

[Jan]

You want to get different outputs. Then it is not clear, what kind of "single command" you want for this job. It is not clear, what you want as output. But solving this with a for loop is easy, so why don't you use it?

[Ayesha Maroof]

Because i am lookig for a single command.

if 1-2-3-4-5 is the main sequence, i want all combinations like this:

2-3-4-5-1

1-3-4-5-2

1-2-4-5-3

1-2-3-5-4

like this.I want to move step by step elements to end without changing the main sequence

Answer 1

[Stephen23]

Here is a general solution for any sized vector (not in a single command though):

>> N = 5;
>> V = 1:N
V =
   1   2   3   4   5
>> [~,X] = sort(eye(N),2);
>> M = V(X)
M =
   2   3   4   5   1
   1   3   4   5   2
   1   2   4   5   3
   1   2   3   5   4
   1   2   3   4   5

[Ayesha Maroof]

Thank you soooo much Stephen.anyway its better than using a for loop.

[Jan]

+1. When the vector is 1:N, the single command is working already:

[~,X] = sort(eye(N),2)

Answer 2

[Jan]

Or:

X = [(1:N-1) + triu(ones(N, N-1)), (1:N).']
% Auto-expanding: >= R2016b

This is 2 times faster for N=200, and 3 times for N=400 than sorting the eye matrix, but less nice.