move element in array
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Hi,
I have an array of n elements, let's say for example:
[0 1 2 3 4 5]
I want to move the position of one of the elements left or right by one, let's say:
[0 1 2 4 3 5]
How can I do this? Does indexing help?
2 commentaires
Stephen23
le 17 Nov 2017
Just use indexing:
>> V = [0,1,2,3,4,5];
>> V([5,4]) = V([4,5])
V =
0 1 2 4 3 5
Réponses (2)
Navid Mohammadzadeh
le 17 Nov 2017
Why do not use "circshift" command?
Look: A =
1
2
3
4
5
6
7
8
9
10
Y = circshift(A,3)
Y =
8
9
10
1
2
3
4
5
6
7
2 commentaires
thiago rech
le 13 Nov 2020
Maybe that was not the answer he was looking for, but it helped me with something else really cool.
Thanks!
Christoph
le 19 Juin 2012
Hi,
your problem sounds wired. For what reason do you want to switch the postion of only two elements in an array?
Nevertheless I guess indexing is the only way to switch the positon of two elements. Also you need a temporary variable to store one of the objects. My solution would look like:
X = [1 2 3 4 5]; temp = X(3); X(3) = X(4); X(4) =temp;
If you need more than one time write an function with X and i (element you want to switch) as input argument and x as outputargument.
Kind regrads, CN
3 commentaires
Christoph
le 19 Juin 2012
Hi Moon,
intresting idea. I'll try to write this function at the evening if the todays soccer game is not that interesting ;)
Christoph
le 19 Juin 2012
Just thought a further minute about your problem. I guess I would modelling mixing cards in a different way. I would divide the vector at a random position and put the first stack behind the second....that should look like this:
pos = randi([1, numberofcards-1])
stack = [stack(pos+1,end),stack(1:pos)];
put this it in a for loop and you modelled the perfect card mixer
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