Displaying 3 results from an estimated 3 matches for "sructure".
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structure
2009 Dec 17
2
issue with using rm: cannot generate on-the-fly list
...o the scope of variables declared in
the loop is global. Within this loop I generate several variables which
should be removed at the end of each iteration. To do this, I wrote a
function to clean up the workspace. An example is included here:
cleanUpWorkspace<-function()
{
#Remove key data sructures, if they have been declared:
delList<-list()
for(varname in c("rv1","rv2", "rv3", "rv4")) {
if(exists(varname)) {
delList<-append(delList, varname)
}
}
if(length(delList)>0) {
rm(list=delList, pos=...
2005 Feb 17
0
lme4--->GLMM
...ed, if i first attach the lme4 package and then the nlme-package):
GLMM(....., random=list(my.Subject=~var.a1+var.a2+var.a3,
my.Subject=~var.b1+var.b2, my.Subject=var.c1+var.c2+var.c3+var.c4),.....)
and really could make estimates in such a way.
The problem is how can i specify a simple matrix sructure for each
block, such as pdIdent(...) in symbols of lme4. is it possible?
Does the lme4 any use of pdMat-specification or something like this? If
not, it seems, that i actually specify a general Covariance Matrix
for each block, what i in principle don't want.
thanks in advance
2005 Jun 21
1
Data.frames with different line's length
Hello,
I want to create a data.frame with different number of columns per line. What I want is something like:
example <- NULL
begin <- 1
while (end < nrow(orig.data))
{
end <- next.day(orig.data,begin) # my own function. It returns the first index from the next day. Each day has a different number of records.
example <- rbind(example, c(begin, end, predictions[c(begin:end)],