Displaying 5 results from an estimated 5 matches for "bgytcc".
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bgcc
2007 Feb 20
1
Simplification of Generalised Linear mixed effects models using glmmPQL
...in lme4 as well and lmer or lmer2 will not
accept my random terms of "rep" (replicate) nested within "pop"
population.
I have read the appropriate sections of the available books and R help
pages but I am at a loss of where to move from here
data<-read.table("D:\\bgytcc\\MITES\\Data\\Analysis\\test.txt",header=T)
attach(data)
names(data)
m1<-glmmPQL(dev~env*har*treat+dens, random = ~1|pop/rep, family = Gamma)
summary(m1)
anova.lme(m1)
m2<-update(m1,~.-env:har:treat)
anova.lme(m1,m2)###this does not work
AIC(m1)##this does not work
logLik(m1)##this...
2006 Feb 02
0
How do I normalize a PSD?
...ting skills did not
make to grand an appearance.
Regards,
KeithC.
Message: 30
Date: Tue, 31 Jan 2006 13:02:03 -0800
From: Leif Kirschenbaum <leif at reflectivity.com>
Subject: Re: [R] How do I "normalise" a power spectral density
To: r-help at stat.math.ethz.ch, Tom C Cameron <bgytcc at leeds.ac.uk>
Message-ID: <200601312102.k0VL29fS003509 at hypatia.math.ethz.ch>
Content-Type: text/plain; charset=iso-8859-1
I have done a fair bit of spectral analysis, and hadn't finished collecting
my thoughts for a reply, so hadn't replied yet.
What exactly do you mean by n...
2006 Jan 31
1
How do I "normalise" a power spectral density
...[[2]],p0[[1]],type="o",col="black")
> Message: 113
> Date: Mon, 30 Jan 2006 17:45:58 -0800
> From: Spencer Graves <spencer.graves at pdf.com>
> Subject: Re: [R] How do I "normalise" a power spectral density
> analysis?
> To: Tom C Cameron <bgytcc at leeds.ac.uk>
> Cc: r-help at stat.math.ethz.ch
> Message-ID: <43DEC156.2090900 at pdf.com>
> Content-Type: text/plain; charset=us-ascii; format=flowed
>
> Since I have not seen a reply to this post, I will
> offer a comment,
> even though I have not used spect...
2006 Jan 25
0
Interpolating spline problems and akima
Hi everyone
I was using spline to interpolate single or two consecutive missing data points
in time series. However, when it comes to longer gaps in the data the spline
function generate new data for both my known and unknown data (see below).
Aside from not understanding why this happens, I thought thought I might try
function "aspline" in library (akima). However, I cannot install or
2006 Jan 27
2
How do I "normalise" a power spectral density analysis?
Hi everyone
Can anyone tell me how I normalise a power spectral density (PSD) plot of a
periodical time-series. At present I get the graphical output of spectrum VS
frequency.
What I want to acheive is period VS spectrum? Are these the same things but the
x-axis scale needs transformed ?
Any help would be greatly appreciated
Tom