[R] Building a random walk vector

[Ben Bolker]

Matthew Wilson <matt <at> overlook.homelinux.net> writes:

> 
> I'm studying R in my free time.  I want to build a vector where each
> element is equal to the element before it in the sequence plus some
> random tweak.
> 

  You will probably get many answers to this, but
I think

vec <- 100+c(0,cumsum(runif(49,-2,2)))

works.

  Ben Bolker