How do I make an array with a for loop, when I doesn't use integers?

I have a for loop where I get the error:

Attempted to access final(1.5,:); index must be a positive integer or logical.

Error in L4_Change (line 76)
final(I,:) = Y2_final(end,:);                              % Save Last Value Of Each ‘Y2’

My code is

for I = 1:0.5:4

    (alot lot of code inbetween)

final(I,:) = Y2_final(end,:);                 % Save Last Value Of Each ‘Y2’
end

The code works if I use I = 1:4 instead of I = 1:0.5:4. I need the extra steps in between. Is there a way to solve this?

Answer 1

[Image Analyst]

I don't know what you really intend to do. This is the closest thing I can think of:

myValues = 1 : 0.5 : 4;
for k = 1 : length(myValues)
  thisValue = myValues(k); % Extract the k'th index.
  % Then use thisValue somehow, if you need to,
  % but not as an index.  Use k instead.
  % ....more code......then...
  % Store last row of Y2_final in the k'th row of final.
  final(k,:) = Y2_final(end,:); 
end