Simple (and probably stupid) question about for loops

[John W. Eaton]

On 25-May-2010, AlbFrigerio wrote:

| Hi everyone, I believe I'm really rusty in using Octave cause I'm trying to
| do a very simple thing (in my mind) but I cannot succed in it. I tried to
| read the guide and some posts on for loops, but I haven't managed anything.
| 
| Here it is my question : is it possible to update the value of the for index
| inside the loop?
| 
| For example, I wrote the following code :
| 
| for k=1:10
|   k
|   if k==2
|      k=5;
|   endif
| endfor
| 
| I'd like the output to be : 1 2 6 7 8 9 10 , but it always gives me 1 2 3 4
| ... 10 . It sounds like the k variable in the loop to be completely
| different from the one used in the loop.

It's not a different variable.  The value is reset each time at the
top of the loop.

jwe