Displaying 20 results from an estimated 300 matches similar to: "4^2 factorial help"
2009 Feb 08
0
Initial values of the parameters of a garch-Model
Dear all,
I'm using R 2.8.1 under Windows Vista on a dual core 2,4 GhZ with 4 GB
of RAM.
I'm trying to reproduce a result out of "Analysis of Financial Time
Series" by Ruey Tsay.
In R I'm using the fGarch library.
After fitting a ar(3)-garch(1,1)-model
> model<-garchFit(~arma(3,0)+garch(1,1), analyse)
I'm saving the results via
> result<-model
2008 Jan 24
6
[LLVMdev] 2.2 Prerelease available for testing
LLVMers,
The 2.2 prerelease is now available for testing:
http://llvm.org/prereleases/2.2/
If anyone can help test this release, I ask that you do the following:
1) Build llvm and llvm-gcc (or use a binary). You may build release
(default) or debug. You may pick llvm-gcc-4.0, llvm-gcc-4.2, or both.
2) Run 'make check'.
3) In llvm-test, run 'make TEST=nightly report'.
4) When
2011 Jan 20
1
Problems with ecodist
Dear Dr.Goslee and anyone may intrested in matrix manipulate,
I am using your ecodist to do mantel and partial mantel test, I have
locality data and shape variation data, and the two distance matrixs are
given as belowings. When I run the analysis, it is always report that the
matrix is not square, but I didn't know what's wrong with my data. Would you
please help me on this. I am quite
2008 Feb 03
0
[LLVMdev] 2.2 Prerelease available for testing
Target: FreeBSD 6.2-STABLE on i386
autoconf says:
configure:2122: checking build system type
configure:2140: result: i386-unknown-freebsd6.2
[...]
configure:2721: gcc -v >&5
Using built-in specs.
Configured with: FreeBSD/i386 system compiler
Thread model: posix
gcc version 3.4.6 [FreeBSD] 20060305
[...]
objdir != srcdir, for both llvm and gcc.
Release build.
llvm-gcc 4.2 from source.
2010 Mar 17
1
constrOptim - error: initial value not feasible
Hello at all,
working with a dataset I try to optimize a non-linear function with
constraint.
test<-read.csv2("C:/Users/Herb/Desktop/Opti/NORM.csv")
fkt<- function(x){
a<-c(0)
s<-c(0)
#Minimizing square error
for(j in 1:107){
s<-(test[j,2] - (x[1] * test[j,3]) - (x[2] * test[j,4]) - (x[3]*test[j,5]) -
(x[4]*test[j,6]) - (x[5]*test[j,7]))^2
a<- a+s}
a<-as.double(a)
2012 Nov 23
2
[LLVMdev] [cfe-dev] costing optimisations
On 23.11.2012, at 15:12, john skaller <skaller at users.sourceforge.net> wrote:
>
> On 23/11/2012, at 5:46 PM, Sean Silva wrote:
>
>> Adding LLVMdev, since this is intimately related to the optimization passes.
>>
>>> I think this is roughly because some function level optimisations are
>>> worse than O(N) in the number of instructions.
>>
2007 Sep 18
0
[LLVMdev] 2.1 Pre-Release Available (testers needed)
On Fri, Sep 14, 2007 at 11:42:18PM -0700, Tanya Lattner wrote:
> The 2.1 pre-release (version 1) is available for testing:
> http://llvm.org/prereleases/2.1/version1/
>
> [...]
>
> 2) Download llvm-2.1, llvm-test-2.1, and the llvm-gcc4.0 source.
> Compile everything. Run "make check" and the full llvm-test suite
> (make TEST=nightly report).
>
> Send
2008 Jan 28
0
[LLVMdev] 2.2 Prerelease available for testing
Target: FreeBSD 7.0-RC1 on amd64.
autoconf says:
configure:2122: checking build system type
configure:2140: result: x86_64-unknown-freebsd7.0
[...]
configure:2721: gcc -v >&5
Using built-in specs.
Target: amd64-undermydesk-freebsd
Configured with: FreeBSD/amd64 system compiler
Thread model: posix
gcc version 4.2.1 20070719 [FreeBSD]
[...]
objdir != srcdir, for both llvm and gcc.
Release
2013 Nov 15
1
Inconsistent results between caret+kernlab versions
I'm using caret to assess classifier performance (and it's great!). However, I've found that my results differ between R2.* and R3.* - reported accuracies are reduced dramatically. I suspect that a code change to kernlab ksvm may be responsible (see version 5.16-24 here: http://cran.r-project.org/web/packages/caret/news.html). I get very different results between caret_5.15-61 +
2012 Sep 27
1
Package ‘orcutt’ bug?
Hello~
Did any one have used the package 'orcutt' ?
I find that it can not work smoothly in a single variable regression. I use the example following, it function very well.
But when I regress "cons" on "price" (use the "reg1<-lm(cons~price+income+temp)") , then use "reg11<-cochrane.orcutt(reg1)
". There is an error message “Error in
2005 Sep 28
1
gee models summary
I'm running some GEE models but when I request the summary(pcb.gee) all
I get are rows and rows of intercorelations and they fill up the screen
buffer so I can not even scroll back to see what else might be in the
summary. How do I get the summary function to NOT print the
intercorrelations?
Thanks,
--
Dean Sonneborn
Programmer Analyst
Department of Public Health Sciences
University of
2010 Jun 18
1
12th Root of a Square (Transition) Matrix
Dear R-tisans,
I am trying to calculate the 12th root of a transition (square) matrix, but can't seem to obtain an accurate result. I realize that this post is laced with intimations of quantitative finance, but the question is both R-related and broadly mathematical. That said, I'm happy to post this to R-SIG-Finance if I've erred in posting this to the general list.
I've
2008 Jul 25
2
Fit a 3-Dimensional Line to Data Points
Hi Experts,
I am new to R, and was wondering how to do 3D linear
regression in R. In other words, I need to Fit a
3-Dimensional Line to Data Points (input).
I googled before posting this, and found that it is
possible in Matlab and other commercial packages. For
example, see the Matlab link:
2004 May 02
1
arima problems when using argument fixed=
As I am reading ?arima, only NA entries in the argument fixed=
imports. The following seems to indicate otherwise:
x <- arima.sim(model=list(ar=0.8), n=100) + (1:100)/50
> t <- 1:100
> mod1 <- lm(x ~ t)
>
> init1 <- c(0, coef(mod1)[2])
> fixed1 <- c(as.numeric(NA), 0)
>
> arima(x, order=c(1,0,0), xreg=t, include.mean=FALSE, init=init1,
fixed=fixed1)
2008 Sep 17
2
adding rows to table
Greetings everyone,
I'm trying to add a specific table or a specific number of rows (e.g.44) to a table with no success.
This is my basic table
> head(dataA)
year plot spp prop.B DCA1 DCA2 DCA3 DCA4
1 2000 1 a1 0.031079 -0.0776 -0.0009 0.0259 -0.0457
2 2000 1 a2 0.968921 -0.0448 0.1479 -0.1343 0.1670
3 2000 2 a1 0.029218
2002 Apr 28
2
dropterm() in MASS
To compare two different models, I've compared the result of using
dropterm() on both.
Single term deletions
Model:
growth ~ days + I(days^0.5)
Df Sum of Sq RSS AIC
<none> 2.8750 -0.2290
days 1 4.8594 7.7344 4.6984
I(days^0.5) 1 0.0234 2.8984 -2.1722
AND
Single term deletions
Model:
growth ~ days + I(days^2)
Df Sum
2007 Jun 27
2
Meta-Analysis of proportions
Dear colleagues,
I'm conducting a meta-analysis of studies evaluating adherence of HIV-positive drug users into AIDS treatment, therefore I'm looking for some advice and syntax suggestion for running the meta-regression using proportions, not the usual OR/RR frequently used on RCT studies.
Have already searched already several handbooks, R-manuals, mailing lists, professors, but... not
2007 Sep 15
22
[LLVMdev] 2.1 Pre-Release Available (testers needed)
LLVMers,
The 2.1 pre-release (version 1) is available for testing:
http://llvm.org/prereleases/2.1/version1/
I'm looking for members of the LLVM community to test the 2.1
release. There are 2 ways you can help:
1) Download llvm-2.1, llvm-test-2.1, and the appropriate llvm-gcc4.0
binary. Run "make check" and the full llvm-test suite (make
TEST=nightly report).
2) Download
2006 Mar 31
1
Odd anova(lm()) order phenomenon, looking for an explanation
Hi everyone,
I'm witnessing an odd modelling phenomenon that I can't explain. If
anyone has seen this before, or can explain what's going on would let
me know, I'd be very grateful! Especially if I'm just being dim.
I'm fitting a pair of continuous variates and their interaction to
some residuals from another model. The sequential anova statement
changes with the term
2011 Apr 27
3
Kolmogorov-Smirnov test
Hi,
I have a problem with Kolmogorov-Smirnov test fit. I try fit distribution to
my data. Actualy I create two test:
- # First Kolmogorov-Smirnov Tests fit
- # Second Kolmogorov-Smirnov Tests fit
see below. This two test return difrent result and i don't know which is
properly. Which result is properly? The first test return lower D = 0.0234
and lower p-value = 0.00304. The lower 'D'