Why do i have the "Array indices must be positive integers or logical values" error?

Hi, im new in matlab and im trying to move one place to the right the elements of an array

cadena2 = [1,2,3,4,5];

n = length(cadena2);

aux = cadena2(n);

for i = n:-1:1

cadena2(i)=cadena2((i-1));

end

cadena2(1)=aux;

cadena2

i have this error:

Array indices must be positive integers or logical values.

Error in Clase01102 (line 22)

cadena2(i)=cadena2((i-1));

if you can help i really apreciate it

Answer 1

[Jon]

Your problem is that in your loop i goes from 5 down to 1 but you index cadena2((i-1), and for the last loop when i = 1 this equals zero which is not allowed. Indices must be positive integers

The MATLAB function circshift is very helpful for this kind of operation. You can do it in one line

y = circshift(cadena2,1)

[Diego Ernesto Sandoval Vargas]

ohhhh thank you so much :D