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cumulative sum of a vector
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| Jorge Sing 2005-08-31, 7:01 pm |
| i am looking for a function that will take a vector and make another
vector that is a cumulative sum of the elements of the first one.
Like:
M=[1 2 3 3 2 1]
then the cumulative sum would be:
cum_sum_M=[1 3 6 9 11 12]
i have several vectors of around 100 elements each to work on...
thank you.
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| Jorge Sing wrote:
>
>
> i am looking for a function that will take a vector and make
> another
> vector that is a cumulative sum of the elements of the first one.
> Like:
> M=[1 2 3 3 2 1]
> then the cumulative sum would be:
> cum_sum_M=[1 3 6 9 11 12]
>
> i have several vectors of around 100 elements each to work on...
> thank you.
Guess what? The function is called cumsum. Take a look at the
lookfor() function of matlab, it is really useful, see:
help lookfor
HTH
PB
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