Displaying 20 results from an estimated 300 matches similar to: "interpreting bootstrap corrected slope [rms package]"
2012 Jul 23
2
Solving equations in R
Hi there,
I would like to solve the following equation in R to estimate 'a'. I have
the amp, d, x and y.
amp*y^2 = 2*a*(1-a)*(-a*d+(1-a)*x)^2
test data:
amp = 0.2370 y=
0.0233 d=
0.002 x=
0.091
Can anyone suggest how I can set this up?
Thanks,
Diviya
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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
2011 Aug 06
1
help with predict for cr model using rms package
Dear list,
I'm currently trying to use the rms package to get predicted ordinal
responses from a conditional ratio model. As you will see below, my
model seems to fit well to the data, however, I'm having trouble
getting predicted mean (or fitted) ordinal response values using the
predict function. I have a feeling I'm missing something simple,
however I haven't been able to
2009 Jun 18
3
how to sort
Hi. I have an object. I think it is a list.
> str(corTFandPCA)
num [1:922, 1:5] -0.0226 -0.0504 -0.0208 -0.0582 -0.0257 ...
- attr(*, "dimnames")=List of 2
..$ : chr [1:922] "abdomen.2" "abdomimal.3" "abdominal.4" "aberration.5"
...
..$ : chr [1:5] "PC1" "PC2" "PC3" "PC4" ...
I want to order it
2011 May 27
1
Put names in the elements of lapply result
Dear list,
I am running some linear regressions through lapply,
>lapply(c('EMAX','EC50','KOUT','GAMMA'),function(x)confint(lm(get(x)~RR0,dataset2)))
I got results like
[[1]]
2.5 % 97.5 %
(Intercept) 0.6595789212 0.8821691261
RR0 -0.0001801771 0.0001489083
[[2]]
2.5 % 97.5 %
(Intercept) -63.83694930
2011 Jul 24
2
[LLVMdev] [llvm-testresults] bwilson__llvm-gcc_PROD__i386 nightly tester results
A big compile time regression. Any ideas?
Ciao, Duncan.
On 22/07/11 19:13, llvm-testresults at cs.uiuc.edu wrote:
>
> bwilson__llvm-gcc_PROD__i386 nightly tester results
>
> URL http://llvm.org/perf/db_default/simple/nts/253/
> Nickname bwilson__llvm-gcc_PROD__i386:4
> Name curlew.apple.com
>
> Run ID Order Start Time End Time
> Current 253 0 2011-07-22 16:22:04
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
2011 Oct 12
2
Nonlinear regression aborting due to error
Colleagues,
I am fitting an Emax model using nls. The code is:
START <- list(EMAX=INITEMAX, EFFECT=INITEFFECT, C50=INITC50)
CONTROL <- list(maxiter=1000, warnOnly=T)
#FORMULA <- as.formula(YVAR ~ EMAX - EFFECT * XVAR^GAMMA / (XVAR^GAMMA + C50^GAMMA)) ## alternate version of formula
FORMULA <- as.formula(YVAR ~ EMAX - EFFECT / (1 + (C50/XVAR)^GAMMA))
FIT <-
2009 Jan 23
1
forecasting error?
Hello everybody!
I have an ARIMA model for a time series. This model was obtained through an
auto.arima function. The resulting model is a ARIMA(2,1,4)(2,0,1)[12] with
drift (my time series has monthly data). Then I perform a 12-step ahead
forecast to the cited model... so far so good... but when I look the plot of
my forecast I see that the result is really far from the behavior of my time
2010 Apr 08
3
[LLVMdev] darwin llvm-gfortran Polyhedron 2005 results
Building the current release 2.7 branch on x86_64-apple-darwin10
with r81455 reverted, I get the following Polyhedron 2005 benchmark
results (with no test failures)...
================================================================================
Date & Time : 7 Apr 2010 22:24:16
Test Name : llvm_gfortran_lin_p4
Compile Command : llvm-gfortran -ffast-math -funroll-loops -msse3
2003 Aug 18
1
R and Poisson
Hi, I wonder if anyone can answer the following or point me in the direction of
how to obtain answers to the questions. Below is Output from R and further down
are the questions raised and explanation of the study.
Output from R:
glm(formula = CB95TO00 ~ URB + INC, family = poisson)
Deviance Residuals:
Min 1Q Median 3Q Max
-1.2272 -1.1290 0.2709 0.4272 2.1376
2008 Nov 26
1
Request for Assistance in R with NonMem
Hi
I am having some problems running a covariate analysis with my
colleage using R with the NonMem program we are using for a graduate
school project. R and NonMem run fine without adding in the
covariates, but the program is giving us a problem when the covariate
analysis is added. We think the problem is with the R code to run the
covariate data analysis. We have the control stream, R code
2010 Apr 08
0
[LLVMdev] darwin llvm-gfortran Polyhedron 2005 results
On Apr 7, 2010, at 8:41 PM, Jack Howarth wrote:
> Building the current release 2.7 branch on x86_64-apple-darwin10
> with r81455 reverted, I get the following Polyhedron 2005 benchmark
> results (with no test failures)...
Very nice! A 14% speedup on a benchmark we don't tune for isn't bad. I imagine that there are several easy wins you could get on it if you were interested
2010 Sep 20
1
[LLVMdev] Polyhedron 2005 regressions
Comparing the Polyhedron 2005 benchmark results for gfortran from
llvm-gcc-4.2 of April 7th, 2010 and September 18th, 2010 (from
the rc2 2.8 release branch), we seem to be regressing in performance
for this release....
================================================================================
Date & Time : 7 Apr 2010 22:24:16
Test Name : llvm_gfortran_lin_p4
Compile Command :
2008 Jul 22
1
Lattice: How to draw curves from given formulae
Dear R Users:
I have a list function as:
Flat: y = 0
Linear: y = -(1.65/8)d
Logistic: y = 0.015 - 1.73/{1+exp[1.2(4-d)]}
Umbrella: y= -(1.65/3)d + (1.65/36)d^2
Emax: y = -1.81d/(0.79+d)
Sigmoid Emax: y = -1.70d^5/(4^5+d^5)
And want draw the figure as attached (those material are extracted from a
paper). Could anyone give me a sample code to do this?
Thanks
2014 Feb 18
1
Problems with admin interface / beta4
Hi folks,
I've been running icecast-2.3.99.3 in production since it was released.
It solved a problem of the icecast process terminating from time to time
and appears quite stable.
In the process of moving to new servers I noticed beta 4 and compiled it
for FreeBSD 10 on a dell poweredge.
I have been unable to get the administrative interface working properly.
You can view
2010 Jul 12
1
What is the degrees of freedom in an nlme model
Dear all,
I want to do a F test, which involves calculation of the degrees of
freedom for the residuals. Now say, I have a nlme object "mod.nlme". I
have two questions
1.How do I extract the degrees of freedom?
2.How is this degrees of freedom calculated in an nlme model?
Thanks.
Jun Shen
Some sample code and data
=================================================================
2004 Apr 10
4
(offtopic) I need two sets of 5 different color scales
Hi,
I am plotting a policy function (result from a dynamic stochastic
optimization problem, discretized approximation). The policy function
maps from an 2 x 2 x 2 x 3 x B x F state space to a B x F state space
(B and F are usually between 4-6, and represent domestic and foreign
savings. The other variables are income (Y), inflation (Pi), domestic
and foreign interest rates (R and Z)). I
2005 Dec 12
2
convergence error (lme) which depends on the version of nlme (?)
Dear list members,
the following hlm was constructed:
hlm <- groupedData(laut ~ design | grpzugeh, data = imp.not.I)
the grouped data object is located at and can be downloaded:
www.anicca-vijja.de/lg/hlm_example.Rdata
The following works:
library(nlme)
summary( fitlme <- lme(hlm) )
with output:
...
AIC BIC logLik
425.3768 465.6087 -197.6884
Random effects:
2008 Jun 05
1
Smooth Spline
Hi,
I have three original curves as follows,
n<-seq(20,200,by=10)
t<-c(0.1138, 0.1639, 0.2051, 0.2473, 0.2890, 0.3304, 0.3827, 0.4075, 0.4618, 0.4944,
0.5209, 0.5562, 0.5935, 0.6197, 0.6523, 0.6771, 0.6984, 0.7209, 0.7453)
es<-c(0.3682, 0.4268, 0.5585, 0.6095, 0.7023, 0.7534, 0.8225, 0.8471, 0.8964, 0.9098, 0.9371, 0.9514, 0.9685, 0.9747, 0.9812, 0.9859, 0.9905, 0.9923, 0.9940)