Nothing
est_bias<-function(x,y,t,bw,bw_ast,family,startv,tol,maxit){
x_t <- outer(x, t, "-")
s <- sin(x_t)
kxt <- exp(bw * cos(x_t))
estp3<-loc_loglik(x,y,t,bw_ast,family,p=3,startv,tol,maxit)
r<-estp3[[3]]*t(s^2)+estp3[[4]]*t(s^3)
if(family=="gaussian"){
sn1 <- apply(kxt * s, 2, sum)
sn2 <- apply(kxt * s^2, 2, sum)
bjti0 <- t(kxt) * (sn2 - t(s) * sn1)
L_r<- bjti0/apply(bjti0, 1, sum)
resa<-L_r%*%t(r)
res<-diag(resa)
}else{
k<-length(t)
beta0<-rep(startv[1],k)
beta1<-rep(startv[2],k)
ts <- t(beta0+beta1*t(s))
if(family=="poisson"){
ets <- exp(ts)
K <- y-ets
}else if(family=="bernoulli"){
ets1 <- exp(ts)/(1+exp(ts))
ets <- ets1/(1+exp(ts))
K <- y-ets1
}else{
ets <- 1*y*exp(-ts)
K <- ets-1
}
bn0 <- apply(kxt * ets, 2, sum)
bn1 <- apply(kxt * ets * s, 2, sum)
bn2 <- apply(kxt * ets * s^2, 2, sum)
bjti0 <- t(kxt)*(bn2 - t(s) * bn1)
bjti1 <- t(kxt)*(t(s)*bn0 - bn1)
beta0<-beta0 + colSums(t(bjti0) * K)/(bn2*bn0-bn1^2)
beta1<-beta1 + colSums(t(bjti1) * K)/(bn2*bn0-bn1^2)
res<-5000
b<-0
while(res>tol){
beta0_old<-beta0
beta1_old<-beta1
ts <- t(beta0+beta1*t(s))
if(family=="poisson"){
ets <- exp(ts)
K <- y-ets
}else if(family=="bernoulli"){
ets1 <- exp(ts)/(1+exp(ts))
ets <- ets1/(1+exp(ts))
K <- y-ets1
}else{
ets <- 1*y*exp(-ts)
K <- ets-1
}
bn0 <- apply(kxt * ets, 2, sum)
bn1 <- apply(kxt * ets * s, 2, sum)
bn2 <- apply(kxt * ets * s^2, 2, sum)
bjti0 <- t(kxt)*(bn2 - t(s) * bn1)
bjti1 <- t(kxt)*(t(s)*bn0 - bn1)
beta0<-beta0 + colSums(t(bjti0) * K)/(bn2*bn0-bn1^2)
beta1<-beta1 + colSums(t(bjti1) * K)/(bn2*bn0-bn1^2)
res<-max(c(abs(beta0-beta0_old),abs(beta1-beta1_old)))
}
ts <- t(beta0+beta1*t(s)+r)
if(family=="poisson"){
ets <- exp(ts)
K <- y-ets
}else if(family=="bernoulli"){
ets1 <- exp(ts)/(1+exp(ts))
ets <- ets1/(1+exp(ts))
K <- y-ets1
}else{
ets <- 1*y*exp(-ts)
K <- ets-1
}
bn0 <- apply(kxt * ets, 2, sum)
bn1 <- apply(kxt * ets * s, 2, sum)
bn2 <- apply(kxt * ets * s^2, 2, sum)
bjti0 <- t(kxt)*(bn2 - t(s) * bn1)
res <- - colSums(t(bjti0) * K)/(bn2*bn0-bn1^2)
}
return(res)
}
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