search for: aoleary

Hi all, My problem is as follows: I want to run a loop which calculates two values and stores them in vectors r and rv, respectively. They're calculated from some vector x with length a multiple of 7. x <- c(1:2058) I need to difference the values but it would be incorrect to difference it all in x, it has to be broken up first. I've tried the following: r <- c(1:294)*0 rv

I'm using the TSA package (along with all prerequisites) to do some GARCH work and for some reason, something which used to work for me has decided to up and stop. The code is as follows, after loading the package: " gs <- garch.sim(alpha=c(1.9,0.1), beta=c(0.700001, -0.0800003, -0.016),rnd = rnorm, n = 400, ntrans=500) gs1 <- garch.sim(alpha=c(1.9,0.1), beta=c(0.7, -0.08,

My question is this: is there a way I can make one of the arguments of the function be a string the user can enter, and then have that be the excel filename? ie, foo <- function(x,y,NAME){ #make a matrix with x rows and y cols M <- matrix(nrow=x,ncol=y) #write the matrix write.table(M, file = "result.csv",append=TRUE, sep = ",") } I've had a look but I