Nothing
"varcov"<-
function(x,ana.obj,partial=NULL,scope=ana.obj$reg.names,...)
{
this.call <- match.call(expand.dots=TRUE)
using.R <- exists("is.R")&&is.R()
bqtl.specials <- c("configs","locus") # dont use: add or dom so
# swap, hk wont jam up
reg.terms <- terms(x,specials=bqtl.specials)
if (any(attr(reg.terms,"order")>1))
stop("cannot use interactions in this formula")
covs <-
rhs.bqtl(reg.terms,ana.obj,bqtl.specials,NULL,scope,
expand.specials=FALSE)
response <-
dimnames(attr(reg.terms,"factors"))[[1]][attr(reg.terms,"response")]
if (!is.null(partial)) {
p.terms <- terms(partial,specials=bqtl.specials)
if (any(attr(p.terms,"order")>1))
stop("cannot use interactions in this formula")
cntl <-
rhs.bqtl(p.terms,ana.obj,bqtl.specials,NULL,scope,
expand.specials=FALSE)
dummy.formula <- eval(parse(text=paste(response,"~",covs,"+",cntl)))
}
else {
cntl <- NULL
dummy.formula <- eval(parse(text=paste(response,"~",covs)))
}
dummy.terms <- terms(dummy.formula)
mf <- model.frame(dummy.terms,ana.obj$data, na.action=na.omit)
if (is.null(partial)) {
x <- model.matrix(dummy.terms,mf)[,-1]
y <- model.extract(mf,"response")
make.varcov(x,y,...)
}
else
{
cntl.out <- eval(parse(text=paste("~ . -", cntl)))
x.formula <- update(dummy.formula,
eval(parse(text=paste("~ . -", cntl))) )
x <- model.matrix(terms(x.formula),mf)[,-1]
y <- model.extract(mf,"response")
z <- model.matrix(terms(eval(parse(text=paste("~", cntl)))),mf)[,-1,drop=FALSE]
y[] <- lsfit(z,y)$resid
x[] <- lsfit(z,x)$resid
res <- make.varcov(x,y,...)
r <- ncol(z)
res$df <- res$df - r
res$call <- this.call
## further adjustments unneeded since posterior is scaled by variance
res
}
}
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