search for: newtree

Displaying 4 results from an estimated 4 matches for "newtree".

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2009 Feb 08
5
glmmBUGS: logistic regression on proportional data
...cify the model correctly. I am trying to specify the response variable, /yseed/, as # of successes out of total observations... but I suspect that given the error below, that is not correct. Also, Newsect should be a factor, whereas Newdist is continuous. Thanks, John Newdat<-data.frame(Newtree=rep(1:3, each=20), Newsect=rep(c("a","b"), each=10), Newdist=rep(1:5, 2), y=rpois(60,2), tot=rep(c(14,12,10,8,6), 12)) yseed<-cbind(Newdat$y, Newdat$tot) mod<-glmmBUGS(yseed~Newsect + Newdist, effects="Newtree", family="binomial",...
2008 Mar 12
0
R code for kernel density using kd-tree, looking for speed up
...it sqrt(sum(temp*temp))/2 } ######################################## Kconst = function(d, n, bw) { con = gamma(d/2+1)/pi^(d/2); con = con/( (2-2*d)/(d+2) + 2*d*(d+7)/(d+4)/(d+6)); con/n/bw^d; } ################################################################### ## create an empty node newtree = function(){ list(center=NULL, diameter=NULL, left=NULL, right=NULL) } #################################################################################### ## add a node to the kdtree addNode = function(tree, points) { numOfPoints = ncol(points); if(numOfPoints==1) { tree$center =...
2010 Oct 05
1
binary tree construction in R
Hi all, I'm very new to R and I'm trying to construct a threaded binary tree using recursive functions. I'm very confused was wondering if anyone had any R sample code they would share. I've come across a lot of C++ code(nothing in R) and this is not helping. best, MK -- View this message in context:
2011 Aug 19
1
gsub for numeric characters in string
...with a name (because there are internal nodes in the tree structure). > tree [1] "(*1*:328,((*5*:154,*2*:135):147,(*3*:30,*4*:50):252):45);" I would like to replace the length with the lengthplusstate in the tree, while removing the names, so that it looks like this: > theoreticalnewtree [1] "(*1*:328,((*1*:154,*4*:135)NA:147,(*3*:30,*2*:50)NA:252)NA:45);" I am using this code: > for (j in all) newtree <- gsub(ln[j], lnplusstate[j], tree) However, I end up with this: > newtree [1] "(*11*:328,((*51*:154,*24*:135)NA:147,(*33*:30,*42*:50)NA:252...