[R] sequential sum of a vector...

From: Shubha Vishwanath Karanth <shubhak_at_ambaresearch.com>
Date: Wed, 23 Jul 2008 19:33:30 +0530

Hi R,  



I want to sum up first 8 elements of x, then again next 8 elements of x, then again another 8 elements..... So, my new vector should look like:


I used:  




But without grouping, can I achieve the required? Any other ways of doing this?  

Thanks, Shubha  

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