Displaying 20 results from an estimated 900 matches similar to: "Basic GLM: residuals definition"
2002 Sep 13
1
Contrasts in ANOVA table
Hello All,
Is there a way of producing an ANOVA table split into contrasts, thus showing the contrasts sums of squares and associated p-values?
Thanks,
Martin.
Martin Hoyle,
School of Life and Environmental Sciences,
University of Nottingham,
University Park,
Nottingham,
NG7 2RD,
UK
Webpage: http://myprofile.cos.com/martinhoyle
2003 Apr 08
2
Basic LME
Hello R Users,
I am investigating the basic use of the LME function, using the following example;
Response is Weight, covariate is Age, random factor is Genotype
model.lme <- lme (Weight~Age, random=~ 1|Genotype)
After summary(model.lme), I find that the estimate of Age is 0.098 with p=0.758.
I am comparing the above model with the AOV function;
model.aov <- aov (Weight~Age + Genotype)
2002 Oct 31
1
Re: gregmisc version 0.7.3 now available
Dear Greg,
Thanks for the new release. The decomposition of the SSQ is just what I need!
Regards,
Martin.
Martin Hoyle,
School of Life and Environmental Sciences,
University of Nottingham,
University Park,
Nottingham,
NG7 2RD,
UK
Webpage: http://myprofile.cos.com/martinhoyle
>>> gregory_r_warnes at groton.pfizer.com 10/30/02 07:16PM >>>
Version 0.7.3 of the gregmisc package
2003 Aug 12
1
Negative binomial theta
Hi,
I'm trying to use the command "glm.nb" in library(MASS) to test for a significant difference in the aggregation parameter "theta" between the three levels of a factor.
Any help gratefully received!
Martin.
Martin Hoyle,
School of Life and Environmental Sciences,
University of Nottingham,
University Park,
Nottingham,
NG7 2RD,
UK
Webpage:
2002 Oct 14
3
normalizing data sets
Hi,
Can someone tell me how to normalize a data set so that the mean of the set is 0 and the variance is 1. As I understand, when you
calculate the principle components of a data set through correlation as
< princomp( dataset, cor=T ) >
then a similar calculation is performed. I would like to know how I can perform such a calulation directly. Any help would be
greatly appreciated.
Many
2002 Oct 13
1
barplot(): X-Axis Labels
Hello all. I have a simple barplot with sixteen different segments. When I plot my data, only five or six of the labels are showing in the x-axis. How do go get them all to show? Can I set them at a 45.degree angle? Thank you.
Jess
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2003 Aug 15
0
quasipoisson, test="F" or "Chi"
Hi,
Please can someone tell me if this is correct for significance tests on count data;
1: If overdispersed, use quasipoisson, drop1(model, test="Chi"),
2: If not overdispersed, use (poisson or quasipoisson), drop1(model, test="Chi").
Thanks for your time,
Martin.
Martin Hoyle,
School of Life and Environmental Sciences,
University of Nottingham,
University Park,
Nottingham,
2002 Sep 11
0
Contrasts with interactions
Dear All,
I'm not sure of the interpretation of interactions with contrasts. Can anyone help?
I do an ANCOVA, dryweight is covariate, block and treatment are factors, c4 the response variable.
model<-aov(log(c4+1)~dryweight+treatment+block+treatment:block)
summary(model);
Df Sum Sq Mean Sq F value Pr(>F)
dryweight 1 3.947 3.947 6.6268 0.01076 *
2002 Oct 12
6
Learning R: which book to choose?
I am new to R. I am going to by one of the following book:
1.
William N. Venables and Brian D. Ripley. Modern Applied Statistics
with S-Plus.
Third Edition. Springer, 1999. ISBN 0-387-98825-4.
2.
The Fourth Edition of the book from point 1.
3.
`S Programming'
by W. N. Venables and B. D. Ripley
Springer. ISBN 0-387-98966-8, 2000.
I can only by one of the above books.
Q1.
I have found
2011 Jul 01
3
multiple moderated regression steps
hi,
?m studying moderated effects of percieved social support and justice world
belief on relationship between stress coping strategies and depression
level. ? haver never run this analysis before soi ? want to check my steps
whether correct or not.
first ? run regression
in step 1
centered independent variables and centered moderators
in step2
two way interactions
instep 3
three way
2002 Apr 15
1
Nested ANOVA with covariates
Dear All,
I'm rather a beginner on nested ANOVAs, so here goes with my 2
questions;
Qu 1:
I'm modelling the number of galls on a leaf (the response variable) as
a function of;
the tree on which I find the leaf,
the branch on which I find the leaf.
Then, the tree and the branch are both random factors, and I'm quite
happy that I should write;
aov(galls~tree/branch +
2018 May 24
0
LLVM Pass To Remove Dead Code In A Basic Block
> On 25 May 2018, at 01:46, Aaron via llvm-dev <llvm-dev at lists.llvm.org> wrote:
>
> Hi all,
>
> LLVM optimization pass gives an error "Terminator found in the middle of a basic block!" since basic block IR may have multiple "ret" instructions. It seems LLVM does not accept multiple return in a basic block by default.
>
Yes, if you’re inserting
2018 May 24
2
LLVM Pass To Remove Dead Code In A Basic Block
Hi all,
LLVM optimization pass gives an error "Terminator found in the middle of a
basic block!" since basic block IR may have multiple "ret" instructions. It
seems LLVM does not accept multiple return in a basic block by default.
Is there a specific optimization or pass that I can enable to remove
unreachable codes in basic blocks?
Best,
Aaron
-------------- next part
2005 Apr 28
2
[LLVMdev] inserting blocks into a Function
Recently wrote a pass that inserts a preheader for a loop that doesn't
have one. When I tried to run it, I ran into a problem that became
obvious in hindsight - the PHINodes need to be updated in places where
the incoming control-edge has changed. Is there anything else that can
be affected when a block is inserted into the CFG?
Also, planning to write a helper function which will take care
2000 Sep 24
2
FW: Crosstabulation
how about this: tapply(vector,list(factor1,factor2),function)?
-----Original Message-----
From: owner-r-help at stat.math.ethz.ch
[mailto:owner-r-help at stat.math.ethz.ch]On Behalf Of Murray Jorgensen
Sent: 24. september 2000 02:46
To: R-help
Subject: [R] Crosstabulation
I can't seem to find a function in R similar to Splus crosstabs() for
creating a multi-way table from factors and a
2002 Dec 10
1
Non-installation of Samba
Hi,
I am attempting install of samba 2.2.7 on a Sequent (IBM) Dynix 4.4.6
platform.
I downloaded the samba-latest.tar from the samba website:
samba.mirror.ac.uk/samba/download.html
Having unzipped and untarred the file, I then started as per the "how to",
very first part.
I ran "./configure" which generated a number of messages before failing as
follows:
...
...
...
2006 Jul 24
3
Identifying peaks (or offsets) in a time series
Dear R-users,
We are monitoring the activity of animals during a few days period. The
data from each animal (crossing of infra-red beam) are collected as a
time series (in 30 min bins). An example is attached below.
y <-
c(0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,3,28,27,46,76,77,60,19,35,55,59,48
,87,20,38,82,62,60,85,105,69,109,102,100,101,116,126,119,63,27,25,15,8,0
2011 Oct 14
0
[LLVMdev] BasicBlock succ iterator
Hi
I have checked all blocks, each block have a Terminator instruction and each
blocks belongs to a function.
I'm really confused. I guess the problem is caused by the removal of the
Loop,The code is as follows:
* //every block to header (except the ones in the loop), will now
redirect to newblock
for (pred_iterator PI = pred_begin(header); PI != pred_end(header);
++PI) {
2003 Jul 15
3
clearing some part of a graph
Hi R lovers
2 questions:
1) I'd like to know how to clean the title, the sub title or the labels of
a graph. I know how to redefine it with the function title() but it
overwrites the previous title and do not replace it
2) How could I clear a whole plot (for example in a multiple figure
environment)
thanks for your help
vincent
2004 May 22
5
Asterisk firewall config
The asterisk wiki states that it needs SIP, IAX2, IAX and RTP open to the
world to work. Is this necessarily true, or does it only need some of these
outgoing?
I'm concerned as anyone that could guess an extension number&password could
use my server to make outgoing calls. It would help if the extensions had a
netmask/allowable IP setting like the iax.conf file uses, but there