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summary.splmm <- function(object,...)
{
if (object$stopped)
{
cat("Algorithm stopped due to","\n")
cat("sparsity assumption","\n")
cat("no summary is available.","\n")
cat("try to increase lambda!","\n")
} else {
# 1. part
table1 <- round(c(object$aic,object$bic,object$bicc,object$ebic,object$logLik,object$deviance,object$objective),1)
names(table1) <- c("AIC","BIC","BICC","EBIC","logLik","deviance","objective")
cat("Model fitted by",object$method,"for","lambda1 =",round(object$lambda1,3),",lambda2 =",round(object$lambda2,3),":\n")
print(table1)
# 2. part
cat("","\n")
cat("Fixed effects:","\n")
penalty.b <- rep("",length(object$coefficients))
penalty.b[object$nonpen.b] <- "(n)"
table3 <- data.frame(object$coefficients,penalty.b)
xnames <- colnames(object$data$x)
if (is.null(xnames))
{
rownames(table3) <- c("(Intercept)",paste("X", 1:(length(object$coefficients)-1),sep=""))
} else
{
rownames(table3) <- c("(Intercept)",colnames(object$data$x)[-1])
}
table3 <- table3[object$coefficients!=0,]
colnames(table3) <- c("Estimate"," ")
cat("Number of nonzero fixed effects=",sum(object$coefficients!=0),"\n")
print(table3)
# 3. part
cat("","\n")
cat("Random effects:","\n")
penalty.L <- rep("",nrow(object$D))
penalty.L[object$nonpen.L] <- "(n)"
penalty.L = c(penalty.L,"")
tableVar <- c(diag(object$D),object$sigma^2)
tableSd <- c(sqrt(diag(object$D)),object$sigma)
matrixVar <- data.frame(tableVar,tableSd, penalty.L)
colnames(matrixVar) <- c("Variance","Std.Dev.","")
znames <- colnames(object$data$z)
if (is.null(znames))
{
rownames(matrixVar) <-c("(Intercept)",paste("Z", 1:(nrow(object$D)-1),sep=""),"")
} else
{
rownames(matrixVar) <- c("(Intercept)",colnames(object$data$z)[-1],"sigma")
}
matrixVar <- matrixVar[diag(object$D)!=0,]
cat("Number of nonzero random effects=",sum(diag(object$D)!=0),"\n")
print(matrixVar)
# 4th part
cat("","\n")
cat("Number of iterations:",object$counter,"\n")
}
}
print.splmm <- function(x,...) {
# 0. part
print(x$call)
# 2. part
cat("","\n")
cat("Fixed effects:","\n")
cat("Number of nonzero fixed effects=",sum(x$coefficients!=0),"\n")
# 3. part
cat("","\n")
cat("Random effects:","\n")
cat("Number of nonzero random effects=",sum(diag(x$D)!=0),"\n")
}
utils::globalVariables(c("lambda1", "Value", "Criteria","lambda2"))
plot.splmm <- function(x,...){
# check if the object is splmm.tuning
if(class(x)!="splmm.tuning") stop("input is not splmm.tuning object.")
if(x$lam1.tuning&!x$lam2.tuning){
BIC = cbind.data.frame(x$lam1.seq,rep("BIC",length(x$BIC.lam1)),x$BIC.lam1)
names(BIC) = c("lambda1","Criteria","Value")
AIC = cbind.data.frame(x$lam1.seq,rep("AIC",length(x$AIC.lam1)),x$AIC.lam1)
names(AIC) = c("lambda1","Criteria","Value")
BICC = cbind.data.frame(x$lam1.seq,rep("BICC",length(x$BICC.lam1)),x$BICC.lam1)
names(BICC) = c("lambda1","Criteria","Value")
EBIC = cbind.data.frame(x$lam1.seq,rep("EBIC",length(x$EBIC.lam1)),x$EBIC.lam1)
names(EBIC) = c("lambda1","Criteria","Value")
plot.df = rbind.data.frame(BIC,AIC,BICC,EBIC)
plot.df$Value = round(plot.df$Value,2)
ggplot(plot.df, aes(x = lambda1, y = Value, group = Criteria)) +
geom_line(aes(linetype = Criteria, color = Criteria))+
geom_point(aes(color = Criteria))+
ggtitle("Tuning for lambda 1")
}else if(!x$lam1.tuning&x$lam2.tuning){
BIC = cbind.data.frame(x$lam2.seq,rep("BIC",length(x$BIC.lam2)),x$BIC.lam2)
names(BIC) = c("lambda2","Criteria","Value")
AIC = cbind.data.frame(x$lam2.seq,rep("AIC",length(x$AIC.lam2)),x$AIC.lam2)
names(AIC) = c("lambda2","Criteria","Value")
BICC = cbind.data.frame(x$lam2.seq,rep("BICC",length(x$BICC.lam2)),x$BICC.lam2)
names(BICC) = c("lambda2","Criteria","Value")
EBIC = cbind.data.frame(x$lam2.seq,rep("EBIC",length(x$EBIC.lam2)),x$EBIC.lam2)
names(EBIC) = c("lambda2","Criteria","Value")
plot.df = rbind.data.frame(BIC,AIC,BICC,EBIC)
plot.df$Value = round(plot.df$Value,2)
ggplot(plot.df, aes(x = lambda2, y = Value, group = Criteria)) +
geom_line(aes(linetype = Criteria, color = Criteria))+
geom_point(aes(color = Criteria))+
ggtitle("Tuning for lambda 2")
}else if(x$lam1.tuning&x$lam2.tuning){
BIC1 = cbind.data.frame(x$lam1.seq,rep("BIC",length(x$BIC.lam1)),x$BIC.lam1)
names(BIC1) = c("lambda1","Criteria","Value")
AIC1 = cbind.data.frame(x$lam1.seq,rep("AIC",length(x$AIC.lam1)),x$AIC.lam1)
names(AIC1) = c("lambda1","Criteria","Value")
BICC1 = cbind.data.frame(x$lam1.seq,rep("BICC",length(x$BICC.lam1)),x$BICC.lam1)
names(BICC1) = c("lambda1","Criteria","Value")
EBIC1 = cbind.data.frame(x$lam1.seq,rep("EBIC",length(x$EBIC.lam1)),x$EBIC.lam1)
names(EBIC1) = c("lambda1","Criteria","Value")
plot.df1 = rbind.data.frame(BIC1,AIC1,BICC1,EBIC1)
plot.df1$Value = round(plot.df1$Value,2)
BIC2 = cbind.data.frame(x$lam2.seq,rep("BIC",length(x$BIC.lam2)),x$BIC.lam2)
names(BIC2) = c("lambda2","Criteria","Value")
AIC2 = cbind.data.frame(x$lam2.seq,rep("AIC",length(x$AIC.lam2)),x$AIC.lam2)
names(AIC2) = c("lambda2","Criteria","Value")
BICC2 = cbind.data.frame(x$lam2.seq,rep("BICC",length(x$BICC.lam2)),x$BICC.lam2)
names(BICC2) = c("lambda2","Criteria","Value")
EBIC2 = cbind.data.frame(x$lam2.seq,rep("EBIC",length(x$EBIC.lam2)),x$EBIC.lam2)
names(EBIC2) = c("lambda2","Criteria","Value")
plot.df2 = rbind.data.frame(BIC2,AIC2,BICC2,EBIC2)
plot.df2$Value = round(plot.df2$Value,2)
p1 <- ggplot(plot.df1, aes(x = lambda1, y = Value, group = Criteria)) +
geom_line(aes(linetype = Criteria, color = Criteria))+
geom_point(aes(color = Criteria))+
ggtitle("Tuning for lambda 1")
p2 <- ggplot(plot.df2, aes(x = lambda2, y = Value, group = Criteria)) +
geom_line(aes(linetype = Criteria, color = Criteria))+
geom_point(aes(color = Criteria))+
ggtitle("Tuning for lambda 2")
grid.arrange(p1,p2,ncol=2)
}
}
plot3D.splmm <- function(x,criteria=c("BIC","AIC","BICC","EBIC"),type=c("line","surface"),...){
# check if the object is splmm.tuning
if(class(x)!="splmm.tuning") stop("input is not splmm.tuning object.")
if(!x$lam1.tuning|!x$lam2.tuning) stop("input needs to be splmm.tuning object for both lam1 and lam2.")
criteria <- match.arg(criteria)
type <- match.arg(type)
if(type=="line"){
if(criteria=="BIC"){
BIC.df = cbind.data.frame(expand.grid(x$lam1.seq,x$lam2.seq),as.vector(x$fit.BIC))
names(BIC.df) = c("lambda 1","lambda 2","Value")
scatter3D(x=BIC.df$`lambda 1`, y=BIC.df$`lambda 2`, z=BIC.df$Value, phi = 0, bty = "g", type = "h",
ticktype = "detailed", pch = 19, cex = 0.5, xlab="lambda 1",ylab="lambda 2",zlab="",main="BIC value")
}else if(criteria=="AIC"){
AIC.df = cbind.data.frame(expand.grid(x$lam1.seq,x$lam2.seq),as.vector(x$fit.AIC))
names(AIC.df) = c("lambda 1","lambda 2","Value")
scatter3D(x=AIC.df$`lambda 1`, y=AIC.df$`lambda 2`, z=AIC.df$Value, phi = 0, bty = "g", type = "h",
ticktype = "detailed", pch = 19, cex = 0.5, xlab="lambda 1",ylab="lambda 2",zlab="",main="AIC value")
}else if(criteria=="BICC"){
BICC.df = cbind.data.frame(expand.grid(x$lam1.seq,x$lam2.seq),as.vector(x$fit.BICC))
names(BICC.df) = c("lambda 1","lambda 2","Value")
scatter3D(x=BICC.df$`lambda 1`, y=BICC.df$`lambda 2`, z=BICC.df$Value, phi = 0, bty = "g", type = "h",
ticktype = "detailed", pch = 19, cex = 0.5, xlab="lambda 1",ylab="lambda 2",zlab="",main="BICC value")
}else if(criteria=="EBIC"){
EBIC.df = cbind.data.frame(expand.grid(x$lam1.seq,x$lam2.seq),as.vector(x$fit.EBIC))
names(EBIC.df) = c("lambda 1","lambda 2","Value")
scatter3D(x=EBIC.df$`lambda 1`, y=EBIC.df$`lambda 2`, z=EBIC.df$Value, phi = 0, bty = "g", type = "h",
ticktype = "detailed", pch = 19, cex = 0.5, xlab="lambda 1",ylab="lambda 2",zlab="",main="EBIC value")
}
}else if(type=="surface"){
if(criteria=="BIC"){
persp3D(x = x$lam1.seq, y = x$lam2.seq,
z = x$fit.BIC, phi = 0, bty = "g", type = "h",
ticktype = "detailed", pch = 19, cex = 0.5,
xlab = "lambda 1", ylab = "lambda 2",
zlab = "", main = "BIC value")
}else if(criteria=="AIC"){
persp3D(x = x$lam1.seq, y = x$lam2.seq,
z = x$fit.AIC, phi = 0, bty = "g", type = "h",
ticktype = "detailed", pch = 19, cex = 0.5,
xlab = "lambda 1", ylab = "lambda 2",
zlab = "", main = "AIC value")
}else if(criteria=="BICC"){
persp3D(x = x$lam1.seq, y = x$lam2.seq,
z = x$fit.BICC, phi = 0, bty = "g", type = "h",
ticktype = "detailed", pch = 19, cex = 0.5,
xlab = "lambda 1", ylab = "lambda 2",
zlab = "", main = "BICC value")
}else if(criteria=="EBIC"){
persp3D(x = x$lam1.seq, y = x$lam2.seq,
z = x$fit.EBIC, phi = 0, bty = "g", type = "h",
ticktype = "detailed", pch = 19, cex = 0.5,
xlab = "lambda 1", ylab = "lambda 2",
zlab = "", main = "EBIC value")
}
}
}
#plot.splmm <- function(x,...) {
#par(mfrow=c(3,2))
## Tukey-Anscombe plot
#plot(x$residuals~x$fitted.values,col=x$data$grp,main="Tukey-Anscombe Plot",xlab="fitted values",ylab="raw residuals")
#abline(h=0,col="grey")
## QQ-Plot of the residuals
#qqnorm(x$residuals,col=x$data$grp,main="QQ-Plot of the residuals")
#qqline(x$residuals)
## QQ-plot of the random effects
#ranef <- unlist(x$random,recursive=FALSE)
#ranef.sd <- rep(sqrt(diag(x$Psi)),length(levels(x$data$grp)))
#ranef.st <- ranef/ranef.sd
#qqnorm(ranef.st,main="QQ-Plot of the standardized random effects",col=rep(1:dim(x$data$z)[[2]],length(levels(x$data$grp))))
#qqline(ranef.st)
## boxplots of the random effects
#boxplot(ranef~as.factor(rep(1:dim(x$data$z)[[2]],length(levels(x$data$grp)))),border=1:dim(x$data$z)[[2]],
# main="Random effects by effects",xlab="random effects index")
#abline(h=0,col="grey",lty=2)
## fitted vs. observed y
#plot(x$fitted,x$data$y,xlab="fitted values",ylab="observed values",main="response ~ fitted")
#abline(a=0,b=1)
## histogram of the fixed effects
#hist(x$coefficients,main=paste("|active set| = ",sum(x$coefficients!=0)),xlab="fixed effects")
#rug(x$coefficients,lwd=3)
#}
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