[R] Problem using elements in a vector

[Redhwan]

Hi

So my particular problem is this:

I have a row vector of length 5200 elements - specifically created by 

x<-rbinom(5200,1,0.5)
y<-matrix(x,nrow=1,ncol=5200)
y

now, each element is either a 0 or a 1 - e.g. it could be
(0,1,1,1,1,0,0,0,1,1,1) e.t.c.

when the element is a 1, i need to multiply a number (say 1000) by 1.005,
and if it is 1 again, multiply it _again_ by 1.005.

so for example, say i have the vector (1,1). it would be 1000 X 1.005 X
1.005

and if the element is 0, then i need to multiply by .995 - i.e. say the
vector was (1,1,0) the value would be 
1000 X 1.005 X 1.005 X .995.

so my questions are these:
1. how do i make R do this automatically for each element and 
2. as each term is multiplied, i want to graph the progress of the initial
1000.

any help would be greatly appreciated.


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