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summary.lmridge <- function(object, ...) {
res <- vector("list")
res$call <- object$call
res$K <- object$K
y <- object$y
ym <- mean(object$mf[,1])
n <- nrow(object$xs)
xm<-object$xm
#p<-ncol(object$xs)
# svdx<-svd(object$xs)
# U<-svdx$u
# D<-svdx$d
# V<-svdx$v
# div<-object$div
# rsigma2<-object$rsigma2
rcoefs <- object$coef
vcov <- vcov(object)
#calculation of Statndard Error
SE <- lapply(vcov, function(x) {
sqrt(diag(x))
})
SE <- do.call(cbind, SE)
rownames(SE) <- rownames(rcoefs)
colnames(SE) <- colnames(rcoefs)
# t-values
tstats <- (rcoefs / SE)
H <- hatr(object)
df <- lapply(H, function(x){
n - sum(diag(x))
})
df <- do.call(cbind, df)
#pvalue <- 2 * (1 - pnorm(abs(tstats)))
if(object$Inter){
pvalue <- 2*pt(-abs(tstats), rep(df-1, each=nrow(tstats)))
}else {
pvalue <- 2*pt(-abs(tstats), rep(df, each=nrow(tstats)))
}
summaries <- vector("list", length(res$K))
coefs <- rbind(coef(object))
resid <- resid(object)
R2r <- round(rstats1(object)$R2, 4)
adjR2r <- round(rstats1(object)$adjR2, 4)
b0 <- ym - colSums(rcoefs * xm)
seb0<-numeric(length(res$K))
for (i in seq(length(res$K))) {
seb0[i]<-sqrt(var(y)/n+ (object$xm^2)%*%(diag(vcov(object)[[i]])))
summary <- vector("list")
if (object$Inter) {
summary$coefficients <- cbind(coefs[i,],
c(b0[i], rcoefs[,i]),
c(seb0[i], SE[,i]),
c(b0[i] / seb0[i], tstats[,i]),
c(2*pt(-abs(b0[i]/seb0[i]),df[i]-1 ), pvalue[,i])
)
colnames(summary$coefficients) <- c("Estimate",
"Estimate (Sc)",
"StdErr (Sc)",
"t-value (Sc)",
"Pr(>|t|)"
)
summary$stats <- cbind(R2r[i],
adjR2r[i],
rstats2(object)$dfridge[i],
rstats1(object)$Fv[i],
infocr(object)[i,1],
infocr(object)[i,2]
)
colnames(summary$stats) <- c("R2",
"adj-R2",
"DF ridge",
"F",
"AIC",
"BIC")
summary$rmse1 <- min(rstats1(object)$mse)
summary$rmse2 <- object$K[which.min(rstats1(object)$mse)]
summary$df1<-rstats2(object)$dfridge
summary$df2<-rstats2(object)$redf
summary$fpvalue<-pf(rstats1(object)$Fv[i],
summary$df1,
summary$df2,
lower.tail=F )
} else{
summary$coefficients <- cbind(coefs[i,],
rcoefs[,i],
SE[,i],
tstats[,i],
pvalue[,i])
colnames(summary$coefficients) <- c("Estimate",
"Estimate (Sc)",
"StdErr",
"t-value",
"Pr(>|t|)")
summary$stats <- cbind(R2r[i],
adjR2r[i],
rstats2(object)$dfridge[i],
rstats1(object)$Fv[i],
infocr(object)[i,1],
infocr(object)[i,2]
)
colnames(summary$stats) <- c("R2",
"adj-R2",
"DF ridge",
"F",
"AIC",
"BIC")
summary$rmse1 <- min(rstats1(object)$mse)
summary$rmse2 <- object$K[which.min(rstats1(object)$mse)]
summary$df1<-rstats2(object)$dfridge
summary$df2<-rstats2(object)$redf
summary$fpvalue<-pf(rstats1(object)$Fv[i],
summary$df1,
summary$df2,
lower.tail=F )
} # else end
summary$K <- object$K[i]
summaries[[i]] <- summary
names(summaries)[[i]] <- paste("summary ", i, sep = " ")
rm(summary)
} # for loop end
res$summaries <- summaries
class(res) <- "summary.lmridge"
res
}
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