Displaying 2 results from an estimated 2 matches for "gen_cod".
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gen_code
2008 Feb 04
0
SOLVED: use classificators learned in R in "real-life", e.g. C
...ually, taking a closer look at the representations of rpart or
randomForest, I came to a much simpler and straight-forward solution:
with only a couple of lines, the corresponding c-code for a tree can be
emitted. e.g. for randomForest:
## generate C code from rforests. generate code for tree k
gen_code=function(rfobj,k) {
tree=getTree(rfobj,k,labelVar=TRUE);
count=0;
loc.env=environment();
visit=function(idx) {
assign('count',count+1,env=loc.env);
if (tree[idx,'status']==-1)
cat(sprintf("RETURN(%s)\n",tree[idx,'prediction']))
e...
2007 May 02
41
gzip compression throttles system?
I just had a quick play with gzip compression on a filesystem and the
result was the machine grinding to a halt while copying some large
(.wav) files to it from another filesystem in the same pool.
The system became very unresponsive, taking several seconds to echo
keystrokes. The box is a maxed out AMD QuadFX, so it should have plenty
of grunt for this.
Comments?
Ian