Displaying 20 results from an estimated 600 matches similar to: "How to obtain intercept statistics in anova with within-subject factors?"
2007 Aug 30
1
(no subject)
Dear R users,I am looking for an easy (i.e., direct) way in obtaining the F and p values from the intercept in anovas with within-subject designs. Data are from a psychophysics expeirment where I am using d' (d-prime) values obtained from 3 modalities of presentation in each subject.I would like to know not only whether there is an effect of modality, but also wether the main effect is
2003 Oct 04
2
mixed effects with nlme
Dear R users:
I have some difficulties analizing data with mixed effects NLME and the
last version of R. More concretely, I have a repeated measures design with
a single group and 2 experimental factors (say A and B) and my interest is
to compare additive and nonadditive models.
suj rv A B
1 s1 4 a1 b1
2 s1 5 a1 b2
3 s1 7 a1 b3
4 s1 1 a2
2012 Mar 29
2
[LLVMdev] VLIWPacketizerList: failing to schedule terminators
Hi,
I'm trying to use the VLIWPacketizerList to schedule instructions for
the R600 target, and I'm running into this assertion failure:
ScheduleDAGInstrs.cpp:558: Cannot schedule terminators or labels!
I think I might not be using the VLIWPacketizerList class correctly.
I've attached my code to this email. Can anyone spot what I'm doing
wrong?
Also, I had to add a LiveIntervals
2004 Apr 28
1
simple repeated measures model: dumb user baffled!
I am in the process of transferring from an old version of S+ to using
R having used a variety of other packages in the past. I'm hugely
impressed with R but it has an excellent but depressing habit of exposing
that I'm not a professional statistician and has done so again.
Someone has run a nice little repeated measures design on my advice,
students randomised to four orders of a
2013 Aug 29
2
gmirror crash writing to disk? Or is it su+j crash?
So I have a system running:
FreeBSD walk.dclg.ca 9.2-RC3 FreeBSD 9.2-RC3 # r254952: Wed Aug 28 03:02:55
EDT 2013 root at walk.dclg.ca:/usr/obj/usr/src/sys/STRIKE i386
and it has two 2T SATA disks. To keep this post short, the crash.txt is
here.
https://uk.eicat.ca/owncloud/public.php?service=files&t=fea9d25579fe0c4afb808859e80e1493
now curiously, while running a "make -j4
2012 Apr 19
0
[LLVMdev] Target Dependent Hexagon Packetizer patch
Sure I will split it and put it in two patches.
Give me few hours. I need to test those patches.
Sirish
On 4/19/2012 8:40 AM, Tom Stellard wrote:
> On Wed, Apr 18, 2012 at 11:18:05PM -0500, Sirish Pande wrote:
>> Hi,
>>
>> Here's a patch for Hexagon Packetizer for review. This patch does
>> not yield any warnings.
>>
> Would it be possible to split this
2005 Jun 30
2
Linear Models with mean as Intercept.
Dear advanced statisticians,
*******Objectif********
I try to set up linear models with mean as intercept:
Answer: y
Variable: x, as factor of two modalities: x(1), x(2).
I would like to have a model as:
y = mean(y)+A(i)+residuals,
with i in (1,2) and A(1) coefficient for x(1) and A(2) coefficient for x(2).
*******Trials in R*******
## Firstly:
I write in R:
>Model<-lm(y~x,Data)
2011 Aug 31
3
Converting anova/ancova summary to data frame
Hi!
Can anyone tell me how to convert the anova/ancova summary output into a data frame?
Thanks!
Shane Phillips
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2008 Aug 21
5
psychometric functions
Hi,
I want to fit some psychophysical data with cumulative gaussians. There is
quite a convenient toolbox for matlab called 'psignifit' (formerly known as
'psychofit'). It allows the lower bound of the sigmoid to vary slightly from
zero, aswell as the upper bound to vary from one. with these two free
parameters, the fitted function is less sensitive to noisy data and
outliers.
2013 Jul 01
1
ZFS Panic after freebsd-update
Hello,
I have not had much time to research this problem yet, so please let me
know what further information I might be able to provide.
This weekend I attempted to upgrade a computer from 8.2-RELEASE-p3 to 8.4
using freebsd-update. After I rebooted to test the new kernel, I got a
panic. I had to take a picture of the screen. Here's a condensed version:
panic: page fault
cpuid = 1
KDB:
2008 Sep 06
2
Sweave and/or beamer issue
Dear Friends,
I not sure whether this is an Sweave or a beamer problem.
The Rnw file:
\documentclass[compress,smaller]{beamer}
%\documentclass{article}
%\usepackage{beamerarticle}
\usepackage{Sweave}
\title{Psychophysics II}
\date{September 9, 2008}
\begin{document}
\frame{
\begin{Schunk}
\begin{Sinput}
> ro <- 0.2
> c <- seq(from = -3, to = 4, by = 0.1)
> fn <- 1 -
2008 Nov 25
2
Statistical question: one-sample binomial test for clustered data
Dear list,
I hope the topic is of sufficient interest, because it is not
R-related. I have N=100 yes/no-responses from a psychophysics
paradigm (say Y Yes and 100-Y No-Responses). I want to see
whether these yes-no-responses are in line with a model
predicting a certain amount p of yes-responses. Standard
procedure would be a one-sample binomial test for the observed
proportion,
chi?(1 df) =
2006 Oct 06
2
Fitting a cumulative gaussian
Dear R-Experts,
I was wondering how to fit a cumulative gaussian to a set of empirical
data using R. On the R website as well as in the mail archives, I found
a lot of help on how to fit a normal density function to empirical data,
but unfortunately no advice on how to obtain reasonable estimates of m
and sd for a gaussian ogive function.
Specifically, I have data from a psychometric function
2012 Jan 06
1
intercept Alt-F2 in winconsole
I need to use Alt-F2 shortcut in Far Manager running with wineconsole. But Alt-F2 invokes standard Linux "run command" dialog. How can I intercept the Alt-F2 so that it is processed by Wine application?
2007 Jun 28
0
Evaluating predictive power with no intercept-statistics question - not R question
I realize that the following has been talked about on this list many
times before in some related way but I
am going to ask for help anyway because I still don't know what to do.
Suppose I have no intercept models such as the following :
Y = B*X_1 + error
Y = B*X_2 + error
Y = B*X_3 + error
Y = B*X_4 + error
and I run regressions on each ( over the same sample of Y ) and now I
want to
2010 May 06
0
intercept in lmp()
Hi all,
Dear Dr. Wheeler,
I am trying to use the lmPerm package to perform multiple regression on
microarray data with certain empirical variables associated with
treatments of the experiment. In order the circumvent the very
conservative multiple test corrections such as Bonferroni and BH, I try
to use permutated probabilities to assess associations.
In addition to mu previous posting I
2005 Jun 14
0
bs() function of the splines package with intercept=FALSE
Hello,
I'm implementing a function using non uniform B-Splines. Looking at the
code of the bs() function, I realized that if the intercept was set to
FALSE, the behavior of the function was the following (df is the number
of degrees of freedom that I believe can be interpreted as the number
of control points):
- Compute df- ord + 1 _internal_ knots (ord is the order of the spline)
- Add ord
2005 Mar 01
2
Negative intercept in glm poisson model
Dear list,
I'm trying to fit a glm model using family=poisson(link = "identity"). The
problem is that the glm function fits a model with a negative intercept,
which sounds like a nonsense to me, being the response a Poisson variable.
>From a previous discussion on this list I've understood that the glm function
uses IRLS for the fitting without any constraint so it is
2011 Oct 16
2
Suppressing the Intercept in lm() when using a dataframe for the model
It's easy to run a linear regression on a simple model without an intercept
just by doing this:
lm(y ~ x1 + x2 -1)
Is there a similar trick to suppress the intercept when your model is in a
large dataframe and you don't want to write out the names of individual
columns?
--
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2011 May 10
1
fitting non-intercept model with lrm
I would appreciate if someone could tell me how to fit a non-intercept model
using lrm (and not glm). The -1 in the formula of the glm does not work with
lrm.
Thanks,
Clarissa
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