Displaying 20 results from an estimated 600 matches similar to: "Help with boot()"
2014 Sep 30
2
[LLVMdev] Behaviour of NVPTX intrinsic
I have written test.ll as below and ran 'opt' on it as
" opt -std-compile-opts test.ll -S -o -" . But the output shows that there
is code motion around the barrier intrinsics.
test.ll
-------
; ModuleID = 'test.bc'
define void @test(i16* %I_0, i16* %I_1, i16* %I_2, i16* %I_3, i16* %O_0) {
entry:
%T_0 = load volatile i16* %I_0
%T_1 = load volatile i16* %I_1
%T_2 =
2010 Aug 03
1
[LLVMdev] Replacing types, use of refineAbstractType
I'm working on a personal project which involves lowering a superset of
LLVM to "vanilla" LLVM. Part of this involves rewriting types. I'm
working off of the 2.6 code base, so this may have been addressed in a bug
fix.
I'm having trouble with refineAbstractType and recursive types.
Specifically, I'm creating opaque types to serve as placeholders for the
final
2002 Mar 29
1
help with lme function
Hi all,
I have some difficulties with the lme function and so this is my problem.
Supoose i have the following model
y_(ijk)=beta_j + e_i + epsilon_(ijk)
where beta_j are fixed effects, e_i is a random effect and
epsilon_(ijk) is the error.
If i want to estimate a such model, i execute
>lme(y~vec.J , random~1 |vec .I )
where y is the vector of my data, vec.J is a factor object
2011 Mar 18
2
XYPlot Conditioning Variable in Specific, Non-Alphanumeric Order. -- Resending with corrected .txt file
Due to an error on my part, I have renamed the previously attached file from
T_5-04b_LTC-SE-SO-Compared.csv to
T_5-04b_LTC-SE-SO-Compared.txt.
It remains a comma-delimited file so the extension can be changed and used per the script, or loaded separately.
My sincere apologies,
Guy
-----Original Message-----
From: Guy Jett
Sent: Friday, March 18, 2011 1:13 PM
To: 'r-help at
2014 Sep 30
2
[LLVMdev] Behaviour of NVPTX intrinsic
is there any guarantee that the nvptx intrinsic "llvm.nvvm.barrier0" will
not be moved around by opt ?
In other words, can I expect all the instructions above
"llvm.nvvm.barrier0" to remain above it and those below it to remain below,
after all the opt passes are run ?
If that is not the case, is there a way to define such an intrinsic ?
Thanks.
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2004 Oct 08
1
nlme vs gls
Dear List:
My question is more statistical than R oriented (although it originates
from my work with nlme). I know statistical questions are occasionally
posted, so I hope my question is relevant to the list as I cannot turn
up a solution anywhere else. I will frame it in the context of an R
related issue.
To illustrate the problem, consider student achievement test score data
with multiple
2009 Jun 19
1
using garchFit() to fit ARMA+GARCH model with exogeneous variables
Hello -
Here's what I'm trying to do. I want to fit a time series y with
ARMA(1,1) + GARCH(1,1), there are also an exogeneous variable x which I
wish to include, so the whole equation looks like:
y_t - \phi y_{t-1} = \sigma_t \epsilon_t + \theta \sigma_{t-1}
\epsilon_{t-1} + c x_t where \epsilon_t are i.i.d. random
variables
\sigma_t^2 = omega + \alpha \sigma_{t-1}^2 + \beta
2000 Mar 28
1
the function lme in package nlme
Dear people,
A somewhat clueless question follows:
I just discovered that the lme function in contrib package nlme for R,
while similar to the lme function in Splus, does not use the cluster
function option. This difference does not appear to be documented in the
V&R `R Complements' file.
I have data which is divided into 6 groups
The lme model is of the form (simplified from the actual
2011 Jan 18
2
Counting dates in arbitrary ranges
Dear Colleagues,
I have a data set that looks as below. I'd like to count the number of dates in a series of arbitrary ranges (breaks) i.e. not pre-defined breaks such as months, quarters or years. table(format()) produces ideally formatted output, but table() does not appear to accept arbitrary ranges.
I also tried converting the dates to numeric and using histogram to try to get the data,
2011 Mar 18
1
XYPlot Conditioning Variable in Specific, Non-Alphanumeric Order.
# I need to create an xyplot() where I control the specific order of
# both my conditioning variables. The default code below plots the
# data correctly (dispersed across all 14 columns), but fails in two
# ways. Both the primary conditioning variable (Transect), and the
# secondary conditioning variable (Offset) are in alphanumeric order,
# rather than the specific order I need.
# Here
2013 Mar 12
1
rugarch: GARCH with Johnson Su innovations
Hey,
I'm trying to implement a GARCH model with Johnson-Su innovations in order to simulate returns of financial asset. The model should look like this:
r_t = alpha + lambda*sqrt(h_t) + sqrt(h_t)*epsilon_t
h_t = alpha0 + alpha1*epsilon_(t-1)^2 + beta1 * h_(t-1).
Alpha refers to a risk-free return, lambda to the risk-premium.
I've implemented it like this:
#specification of the model
2012 Sep 20
1
Gummy Variable : Doubt
Hi,
I have a system in which I analyze 2 subjects and 1 variable, so I have
2 models as follow:
y ~ x_1[, 1] + x_2[, 1] + x_1[, 2] + x_2[, 2]
Where
x_1[, i] = cos(2 * pi * t / T_i)
x_2[, i] = sin(2 * pi * t / T_i)
i = 1, 2
Data have two columns: t and y.
As you can see, I have a multiple components model, with rithm and
without trends, and I have a fundamental
2005 Apr 22
1
lme4: apparently different results between 0.8-2 and 0.95-6
I've been using lme4 to fit Poisson GLMMs with crossed random effects. The
data are counts(y) sampled at 55 sites over 4 (n=12) or 5 (n=43) years. Most
models use three fixed effects: x1 is a two level factor; x2 and x3 are
continuous. We are including random intercepts for YEAR and SITE. On
subject-matter considerations, we are also including a random coefficient
for x3 within YEAR.
2002 Aug 29
8
lme() with known level-one variances
Greetings,
I have a meta-analysis problem in which I have fixed effects
regression coefficients (and estimated standard errors) from identical
models fit to different data sets. I would like to use these results
to create pooled estimated regression coefficients and estimated
standard errors for these pooled coefficients. In particular, I would
like to estimate the model
\beta_{i} = \mu +
2006 May 19
0
how to estimate adding-regression GARCH Model
---------- Forwarded message ----------
From: ma yuchao <ma.yuchao@gmail.com>
Date: 2006-5-20 ÉÏÎç4:01
Subject: hello, everyone
To: R-help@stat.math.ethz.ch
Hello, R people:
I have a question in using fSeries package--the funciton garchFit and
garchOxFit
if adding a regression to the mean formula, how to estimate the model in
R? using garchFit or garchOxFit?
For example,
2011 May 15
0
Again on Data Mining
Dear All,
I have already posted before on the list about data mining and it has
proved very useful.
I have now a training dataset consisting of N objects of M<<N different
kinds (actually, M is usually 3 to 5, whereas N is of the order of 1000).
Every object has its own label L_i, i=1...N, that is known.
For each of these objects I measure some property in time (let's say I
measure it
2013 Mar 21
0
how to remove changed_attributes from yaml response
Hi,
I am using attr_accessor attributes in model class and assigning the
values to attr_accessor dynamically in controller. And am sending the
data object to display in Yaml format. I am getting the response along
with changed_attributes but I don''t want changed_attributes details in
my response.
build Model code
class Test < ActiveRecord::Base
attr_accessor: t_1, t_2, t_3, t_4
end
2006 Nov 03
5
ANOVA in Randomized-complete blocks design
Dear all,
I am trying to repeat an example from Sokal and Rohlfs "Biometry" --
Box 11.4, example of a randomized-complete-blocks experiment.
The data is fairly simple:
series genotype weight
1 pp 0.958
1 pb 0.985
1 bb 0.925
2 pp 0.971
2 pb 1.051
2 bb 0.952
3 pp 0.927
3 pb 0.891
3 bb 0.892
4
2005 Sep 09
1
Off-topic: Comparing standard errors from simulation and analytical model
Dear list:
I'm hoping to tap in to the statistical expertise in the group,
especially those familiar with simulation techniques. I'm finalizing a
study where I obtain standard errors from two sources. The first source
is a monte carlo simulation and the other source is an analytical model
I have developed that appears to recover the standard errors from the
simulation. All analysis are
1998 Jan 20
1
R-beta: questions and comments
Let me first tell you that you and your cohorts are
doing a great service to the statistical community
with R. I have been working with Rseptbeta under
Win95 and I am very impressed with its capabilities.
I thought I give you some feedback gained from
my limited playing with R.
Fritz Scholz
fritz.scholz at boeing.com
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