Fill array with values of other array from index1 to index2

Hello! I have one array (one double column) DateN which contains 21000 values that represent 6 months of dates and time. However I would like to have another array (one double column) that would start at a specific date and end on another (index1 and index2). I tried this code but it freezes matlab and have to restart it (i understand why now)

v=index2-(index1-1); 
for g1=1:v
    for g2=index1:(index2-1)
        global Temps
        Temps(g1,1)= DateN(g2,1);
        g1=g1+1;
        g2=g2+2;
    end
end

and I tried this code:

g2=1;
for g1=index1:index2
Temps(g2,1)= DateN(g1,1);
g1=g1+1;
g2=g2+1;
end

But instead of getting index2-index1 values in Temps I get 3000 more values. Can anyone help? I am using R2013a. Thank you very much!

Answer 1

[Jan]

Do you mean:

Temps = DateN(index1:index2, 1);

Using global 's is surely a bad idea. Avoid globals strictly to allow for an efficient debugging.

for g1=index1:index2
  ...
  g1=g1+1;
end

You should get a warning in the editor: Modifying the loop counter inside the loop is meaningless. g1 is incremented by the FOR loop already.