Displaying 7 results from an estimated 7 matches similar to: "Linear mixed model: question about t-values"
2006 Oct 21
0
Constructing predictions from HPDinterval() after lmer()
Dear r-helpers,
Following up on http://finzi.psych.upenn.edu/R/Rhelp02a/archive/
81159.html where Douglas Bates gives a helpful application of lmer()
to data(sleepstudy, package = 'lme4'), I need a bit more help in
order to plot the correct confidence intervals of a designed
experiment such as:
> data(ratdrink, package = 'faraway')
I follow the steps Douglas took in
2010 Apr 30
0
ROC curve in randomForest
require(randomForest)
rf.pred<-predict(fit, valid, type="prob")
> rf.pred[1:20, ]
0 1
16 0.0000 1.0000
23 0.3158 0.6842
43 0.3030 0.6970
52 0.0886 0.9114
55 0.1216 0.8784
75 0.0920 0.9080
82 0.4332 0.5668
120 0.2302 0.7698
128 0.1336 0.8664
147 0.4272 0.5728
148 0.0490 0.9510
153 0.0556 0.9444
161 0.0760 0.9240
162 0.4564 0.5436
172 0.5148 0.4852
176 0.1730
2007 Oct 14
0
repeated measures - aov, lme, lmer - help
Dear all,
I'm not very sure on the use of repeated measures in R, so some advice
would be very appreciate.
Here is a simple example similar to my real problem (R 2.6.0 for
windows): Lets supose I have annual tree production measured in 9
trees during 3 years; the 9 trees are located in 3 different mountains
(sites), and each tree receive different annual rainfall (different
locations). I would
2002 Oct 11
1
absurd computiation times of lme
Hi,
i've been trying to apply the lme apprach to growth curves
of children, but lme keeps running for ever and ever as
soon as I use a reasonable basis.
First Example:
Data are 39 boys from the Berkeley growth study, each one
measured 31 times at the ages of
1.00 1.25 1.50 1.75 2.00 3.00 4.00 5.00 6.00 7.00 8.00 8.50
9.00 9.50 10.00 10.50 11.00 11.50 12.00 12.50 13.00 13.50
2006 Feb 21
6
How to sum values across multiple variables using a wildcard?
I have a dataframe called "data" with 5 records (in rows) each of
which has been scored on each of many variables (in columns).
Five of the variables are named var1, var2, var3, var4, var5 using
headers. The other variables are named using other conventions.
I can create a new variable called var6 with the value 15 for each
record with this code:
> var6=var1+var2+var3+var4+var5
2013 Jul 28
0
[LLVMdev] IR Passes and TargetTransformInfo: Straw Man
Hi, Sean:
I'm sorry I lie. I didn't mean to lie. I did try to avoid making a
*BIG* change
to the IPO pass-ordering for now. However, when I make a minor change to
populateLTOPassManager() by separating module-pass and non-module-passes, I
saw quite a few performance difference, most of them are degradations.
Attacking
these degradations one by one in a piecemeal manner is wasting
2013 Jul 18
3
[LLVMdev] IR Passes and TargetTransformInfo: Straw Man
Andy and I briefly discussed this the other day, we have not yet got
chance to list a detailed pass order
for the pre- and post- IPO scalar optimizations.
This is wish-list in our mind:
pre-IPO: based on the ordering he propose, get rid of the inlining (or
just inline tiny func), get rid of
all loop xforms...
post-IPO: get rid of inlining, or maybe we still need it, only