How can i convert a vector (1 by 300) into time points

I have a 1 by 300 vector. I want to convert it to time points and write a program such that the system will read the cumulative sum from the first point to the current point and output a value if the sum is higher than a specified threshold. If not higher, it will continue to add up the values at the time points. i have written some code below but it is not giving me what I want.

time=1:300;
[vector]=v(t)
for time=1:300
  if [v(t)] < 0; Then      
      [v]= 0;           % set the value of threshold
  end 
  if v(t) + v(t+1) >= 1; Then 
      [v]= 4;       % set the value of the threshold
      % note the time of increment 
  end     
end

Answer 1

[Image Analyst]

Lots of errors.

1. Don't use time as a variable name because it's a built-in function.
2. Don't use square brackets like you have done.
3. You need to define t and v.
4. Make sure that t+1 never exceeds the length of v.
5. Setting v to a scalar of 4 will cause the next iteration to bomb because you're trying to access the t'th element of an array, and it's no longer an array - it's a scalar.
6. No need to use a semicolon at the end of an if statement.
7. You can't use Then - this is MATLAB, not Visual Basic.
8. You declare vector but never use it.

etc. Make another shot at it after those corrections are made and we'll try again.

[Folakemi Omotoye]

thanks for the correction. i have done the corrections but my output is not what i want. v is the 1x300 vector t is the time

[Image Analyst]

OK, well . . . good luck with it.