Nothing
design.reg.polynom <- function(...){
design.regression.polynom(...)
}
design.regression.polynom <- function(a, b, k, n){
p <- n%/%(k+1)
rem <- n%%(k+1)
loc <- (a+b)/2+(b-a)/2*
solve(deriv(legendre.polynomials(k)[[k+1]])*polynomial(c(1,0,-1)))
repl <- rep(p,k+1)+c(rep(1,rem),rep(0,k+1-rem))
d <- list(model="polynomial", order=k, locations=loc, replications=repl, interval=c(a,b))
class(d) <- "design.regression"
d
}
print.design.regression <- function(x, epl=6, ...){
cat(paste("Design for a ", x$model, "model\n"))
if(!is.null(x$order))
cat(paste("Order:",x$order,"\n"))
cat(paste("Interval: [",x$interval[1],",",x$interval[2],"]\n"))
cat("\n")
lines <- length(x$locations)%/%epl+1
entries <- length(x$locations)
for(i in 1:lines){
if(lines==1)
cat("( ")
else if(i==1)
cat("( ")
else
cat(" ")
cat(sprintf("%1.3e",x$locations[((i-1)*epl+1):(min(entries,((i-1)*epl+1)+epl))]))
if(lines==1)
cat(" )\n( ")
else if(i==1)
cat("\n( ")
else if(i==lines)
cat(" )\n ")
else
cat("\n ")
cat(sprintf("%9i",x$replications[((i-1)*epl+1):(min(entries,((i-1)*epl+1)+epl))]))
if(lines==1)
cat(" )\n")
else if(i==1)
cat("\n ")
else if(i==lines)
cat(" )\n")
else
cat("\n ")
cat("\n")
}
}
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