[R] R beginner: matrix algebra

[Patrick Burns]

Convenient ways of computing both simple
and log returns are at the very end of:

http://www.portfolioprobe.com/2012/11/05/an-easy-mistake-with-returns/

Those work whether you have a vector or
a matrix.

Pat


On 17/12/2012 17:16, kevj1980 wrote:
> Hi, I have an n x m matrix of numerical observations. ie. stock prices
>
> I wish to convert the matrix of observations to a matrix of simple returns
> (by taking the differences between (column) observations.)
>
> Can any good soul suggest a function for this?
>
>
>
> --
> View this message in context: http://r.789695.n4.nabble.com/R-beginner-matrix-algebra-tp4653335.html
> Sent from the R help mailing list archive at Nabble.com.
>
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-- 
Patrick Burns
pburns at pburns.seanet.com
twitter: @portfolioprobe
http://www.portfolioprobe.com/blog
http://www.burns-stat.com
(home of 'Some hints for the R beginner'
and 'The R Inferno')