Nothing
eva.gauss<-function(x,t=1,marginal="unif",sig=c(1,1),r=0,tapa1=TRUE)
{
# sig is std of marginals
if (marginal=="unif"){
u<-x[1]/sig[1]+1/2
v<-x[2]/sig[2]+1/2
marg1<-1/sig[1]
marg2<-1/sig[2]
}
if (marginal=="normal"){
u<-pnorm(x[1]/sig[1])
v<-pnorm(x[2]/sig[2])
marg1<-evanor(x[1]/sig[1])/sig[1]
marg2<-evanor(x[2]/sig[2])/sig[2]
}
if (marginal=="student"){
u<-pt(x[1]/sig[1],df=t)
v<-pt(x[2]/sig[2],df=t)
marg1<-dt(x[1]/sig[1],df=t)/sig[1]
marg2<-dt(x[2]/sig[2],df=t)/sig[2]
}
d<-2
x1<-qnorm(u,sd=1)
x2<-qnorm(v,sd=1)
if (tapa1){
produ<-dnorm(x1,sd=1)*dnorm(x2,sd=1)
nelio<-(x1^2+x2^2-2*r*x1*x2)/(1-r^2)
vakio<-(2*pi)^(-d/2)
g<-vakio*(1-r^2)^(-1/2)*exp(-(1/2)*nelio)
val<-g/produ*marg1*marg2
}
else{
# x1,x2 -> copuval
copuval<-(1-r^2)^(-1/2)*
exp(-(x1^2+x2^2-2*r*x1*x2)/(2*(1-r^2)))/exp(-(x1^2+x2^2)/2)
val<-copuval*marg1*marg2
}
return(val)
}
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