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hi all, Does anyone know which command to use for error function(erf)? Thanks

hi, I would like to know what is the function to plot cdf. Thanks, Luck

Dear all, I would like to know that R has the function for garch-t,gjr- garch,qgarch and egarch. Best Regards, Luck

I use R to generate data and I need to estimate the data by egarch (that doesn't have in R). So how I can call egarch from SAS in R. Regards, luck

Dear R-helpers, I was wondering if anyone has or knows someone who might have an implementation of algorithm for estimating garcht-t, egarch and gjr models. I try to use Fseries but I don't know how to code...

hi, I try to code garch-t(1,1),egach(1,1) and gjr(1,1) to estimate my data. How I can code these model with my data (e.g. garch code is y<-garch(x,order=c(1...

Hi R-users, I try to use "solve" to find the answer of this linear equation a=x*b where a is 2*1 matrix and b is 2*2 matrix.I would like to get x so I call...

Dear R-users, I try to use "solve" to get the solution of this matrix.But it has error happen below. How I can solve this problem. [1] "a" [,1] [1,] 0.8109437 [2,] 5.7569740 [1] "b" [,1] [,2...

Hello all, I would like to know how to call sas code in R. Since I simulate data in R and I need to use sas code (garch-t,egarch and gjr) to estimate it. I need to simulate 500...

hi all, My data is y[j,k] where j=1,...5, k=1,....,10 and when I use cat(y,file="c:data.txt",sep="\n"). The data is coming out into the data.txt is y[1,1...