How to create a column vector where each element will be compounded amount by percentage of another vactor?

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Mohammad Sayeed
Mohammad Sayeed 2014-7-15
评论： Mohammad Sayeed 2014-7-15
Hi, suppose that x=[.2 .3 .4]'; I need to create z=[1000 1000*(1+.2) 1000*(1+.2)(1+.3) 1000*(1+.2)(1+.3)(1+.4)]'. This is just an example. My original x variable has thousands of data. Anyone can help please? first value of z can be 1000 or any other arbitrary value.

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Yoav Livneh
Yoav Livneh 2014-7-15
You need to use the function cumprod. In your example:
x = [.2 .3 .4]';
z = 1000*[1; cumprod(1+x)];
This will give you what you need.

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Mohammad Sayeed
Mohammad Sayeed 2014-7-15
Thank you very much Yoav. It worked perfectly.
Kind regards
Sayeed

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